190 lines
7.5 KiB
C
190 lines
7.5 KiB
C
// header files
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#include "Console_IO_Utility.h"
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// global constants
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// Minimum Arizona Tax, %
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const double MIN_AZ_TAX = 2.59;
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// Maximum Arizona Tax, %
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const double MAX_AZ_TAX = 4.50;
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// Minimum Federal Tax, %
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const double MIN_FED_TAX = 10.00;
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// Maximum Federal Tax, %
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const double MAX_FED_TAX = 37.00;
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// SSN Tax, %
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const double TAX_SSN = 6.20;
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// MC Tax, %
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const double TAX_MC = 1.45;
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// Percent Conversion, ratio
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const double PERCENTAGE_CONVERSION = 0.01;
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// printing related constants
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const int TWO_ENDLINES = 2;
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// constants for table
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const int TABLE_WIDTH = 52;
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const int DATA_NAME_WIDTH = 20;
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const int UNIT_WIDTH = 7;
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const int VALUE_WIDTH = 10;
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const char TOP_LINE[]
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= "====================================================";
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const char THICK_LINE_DIVIDER[]
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= "|==================================================|";
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const char THIN_LINE_DIVIDER[]
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= "|--------------------------------------------------|";
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const char PIPE_SPACE[] = "| ";
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const char SPACE_PIPE[] = " |";
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// function prototypes
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// none
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// main program
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int main()
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{
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// show title
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// function: printString, printEndline(s)
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printString("Dummy Tax Calculator");
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printEndline();
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printString(TOP_LINE);
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printEndlines(2);
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// initialize variables/functions
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double totalIncome, contributionToIRA, adjustedIncome;
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double minTaxFederal, maxTaxFederal, minTaxArizona, maxTaxArizona;
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double taxSSN, taxMC, minTaxTotal, maxTaxTotal;
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double maxIncome, minIncome;
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double minEffectiveTax, maxEffectiveTax;
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// get user input
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// section title
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printString( "Please provide your information below.\n" );
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totalIncome = promptForInteger("Total Income $: ");
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contributionToIRA = promptForInteger("Your IRA Contributions $: ");
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// conduct computations
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// totalIncome is user input
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// IRA Contributions are subtracted from totalIncome to get a modified income (adjusted).
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adjustedIncome = totalIncome - contributionToIRA;
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// Calculate the minimum Federal Tax that would have to be paid, using MIN_FED_TAX * PERCENTAGE_CONVERSION * adjustedIncome
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minTaxFederal = MIN_FED_TAX * PERCENTAGE_CONVERSION * adjustedIncome;
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// Calculate the maximum Federal Tax that would have to be paid, using MAX_FED_TAX * PERCENTAGE_CONVERSION * adjustedIncome
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maxTaxFederal = MAX_FED_TAX * PERCENTAGE_CONVERSION * adjustedIncome;
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// Calculate the minimum AZ State Tax that would have to be paid, using MIN_AZ_TAX * PERCENTAGE_CONVERSION * adjustedIncome
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minTaxArizona = MIN_AZ_TAX * PERCENTAGE_CONVERSION * adjustedIncome;
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// Calculate the maximum AZ State Tax that would have to be paid, using MAX_AZ_TAX * PERCENTAGE_CONVERSION * adjustedIncome
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maxTaxArizona = MAX_AZ_TAX * PERCENTAGE_CONVERSION * adjustedIncome;
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// Calculate the Social Security Tax that would have to be paid, using TAX_SSN * PERCENTAGE_CONVERSION * adjustedIncome
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taxSSN = TAX_SSN * PERCENTAGE_CONVERSION * adjustedIncome;
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// Calculate the Medicare Tax that would have to be paid, using TAX_MC * PERCENTAGE_CONVERSION * adjustedIncome
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taxMC = TAX_MC * PERCENTAGE_CONVERSION * adjustedIncome;
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// Calculate the minimum amount of tax that would have to be paid, using minTaxFederal + minTaxArizona + taxSSN + taxMC
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minTaxTotal = minTaxFederal + minTaxArizona + taxSSN + taxMC;
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// Calculate the maximum amount of tax that would have to be paid, using maxTaxFederal + maxTaxArizona + taxSSN + taxMC
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maxTaxTotal = maxTaxFederal + maxTaxArizona + taxSSN + taxMC;
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// Calculate the maximum income after tax has been paid, using totalIncome - minTaxTotal
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maxIncome = totalIncome - minTaxTotal;
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// Calculate the minimum income after tax has been paid, using totalIncome - maxTaxTotal
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minIncome = totalIncome - maxTaxTotal;
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// Calculate the minimum tax rate, using minTaxTotal / totalIncome / PERCENTAGE_CONVERSION
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minEffectiveTax = (minTaxTotal / totalIncome) / PERCENTAGE_CONVERSION;
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// Calculate the maximum tax rate, using maxTaxTotal / totalIncome / PERCENTAGE_CONVERSION
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maxEffectiveTax = (maxTaxTotal / totalIncome) / PERCENTAGE_CONVERSION;
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// display results
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// print top line
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// function: printString, printEndline
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printEndline();
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printString( TOP_LINE );
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printEndline();
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// print title line
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// function: printCharacter, printStringJustified, printEndline
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printCharacter( PIPE );
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printStringJustified( "DUMMY TAX CALCULATIONS",
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TABLE_WIDTH - 2, "CENTER" );
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printCharacter( PIPE );
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printEndline();
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// print thick divider line
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// function: printString, printEndline
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printString( THICK_LINE_DIVIDER );
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printEndline();
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// print sub title line
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// function: printStringJustified, printString, printCharacter,
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// printEndline
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printString( PIPE_SPACE );
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printStringJustified( "Data Name", DATA_NAME_WIDTH - 1, "LEFT" );
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printCharacter( PIPE );
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printStringJustified( "Units", UNIT_WIDTH, "CENTER" );
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printString( PIPE_SPACE );
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printStringJustified( "MIN", VALUE_WIDTH - 2, "CENTER" );
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printString( SPACE_PIPE );
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printStringJustified( "MAX", VALUE_WIDTH - 1, "CENTER" );
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printString( SPACE_PIPE );
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printEndline();
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// print thin divider line
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// function: printString, printEndline
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printString( THICK_LINE_DIVIDER );
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printEndline();
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// print Effective tax rate
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// function: printStringJustified, printString, printCharacter,
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// printEndline
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printString( PIPE_SPACE );
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printStringJustified( "Effective Tax Rate ", DATA_NAME_WIDTH - 1, "LEFT" );
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printCharacter( PIPE );
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printStringJustified( "%", UNIT_WIDTH, "CENTER" );
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printCharacter( PIPE );
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printDoubleJustified( minEffectiveTax, PRECISION, VALUE_WIDTH -1, "RIGHT" );
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printString( SPACE_PIPE );
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printDoubleJustified( maxEffectiveTax, PRECISION, VALUE_WIDTH - 1, "RIGHT" );
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printString( SPACE_PIPE );
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printEndline();
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// print thin divider line
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// function: printString, printEndline
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printString( THIN_LINE_DIVIDER );
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printEndline();
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// Total tax paid
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// function: printStringJustified, printString, printCharacter,
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// printEndline
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printString( PIPE_SPACE );
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printStringJustified( "Tax To Be Paid ", DATA_NAME_WIDTH - 1, "LEFT" );
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printCharacter( PIPE );
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printStringJustified( "$", UNIT_WIDTH, "CENTER" );
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printCharacter( PIPE );
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printDoubleJustified( minTaxTotal, PRECISION, VALUE_WIDTH -1, "RIGHT" );
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printString( SPACE_PIPE );
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printDoubleJustified( maxTaxTotal, PRECISION, VALUE_WIDTH - 1, "RIGHT" );
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printString( SPACE_PIPE );
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printEndline();
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// print thin divider line
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// function: printString, printEndline
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printString( THIN_LINE_DIVIDER );
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printEndline();
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printString( PIPE_SPACE );
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printStringJustified( "Income After Tax ", DATA_NAME_WIDTH - 1, "LEFT" );
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printCharacter( PIPE );
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printStringJustified( "$", UNIT_WIDTH, "CENTER" );
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printCharacter( PIPE );
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printDoubleJustified( minIncome, PRECISION, VALUE_WIDTH -1, "RIGHT" );
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printString( SPACE_PIPE );
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printDoubleJustified( maxIncome, PRECISION, VALUE_WIDTH - 1, "RIGHT" );
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printString( SPACE_PIPE );
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printEndline();
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// print thick divider line
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// function: printString, printEndline
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printString( THICK_LINE_DIVIDER );
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printEndline();
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// end program / return program success
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return 0;
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}
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// supporting functions
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// none
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