Tax time! Let's assume that we have a much simpler tax code (than the IRS currently has), so that we can calculate taxes easily:

• The tax payer is repeatedly prompted to enter either an amount of income (a positive value) or an amount of deduction (a negative value). This continues until a zero value is entered. The positive values are summed to form the income, and the negative values are summed to form the deduction.
• The taxable income is computed as the income less the deduction, except in the case that the deduction is greater than than the income in which case the taxable income is zero.
• A tax group is calculated from the taxable income:
  • Greater or equal to $500000 = Super rich
  • Greater or equal to $200000 = Quite rich
  • Greater or equal to $100000 = Miami poor
  • Greater or equal to $50000 = Average
  • Greater or equal to $20000 = Realistic
  • Less than $20000 = Poor
  The tax group is saved as an uppercase letter, one of S, Q, M, A, R, P.
• The tax is computed using one of three rates:
  • The super rich and quite rich get taxed at the high rate of 25%.
  • The Miami poor get taxed at the medium rate of 10%.
  • The average and realistic get taxed at the low rate of 3%.
  • The poor pay no tax.
  Additionally, the maximal tax is $50000 (This part is optional).
• The tax information is displayed.

Here is what a sample run should look like (with the keyboard input shown in italics) ...

Enter next amount : 125000 Enter next amount : -250 Enter next amount : -3000 Enter next amount : 15000 Enter next amount : 88000 Enter next amount : -200 Enter next amount : 0 Income = $228000.00 Deductions = $ 3450.00 Taxable Income = $224550.00 Tax group = Q Tax owed = $ 50000.00 

Here are some guidelines for the design, resulting in the following structure chart and algorithm ...

1. Input income and deduction 1.1 Repeatedly until 0.0 is entered 1.1.1 Prompt user 1.1.2 Input value 1.1.3 If positive 1.1.3.1 Add to income 1.1.4 If negative 1.1.4.1 Add (absolute) to deduction 2. Compute taxable income 2.1 If income >= deduction taxable is income - deduction, else 2.2 Taxable is 0.0 3. Compute tax group 3.1 If taxable >= 500000 3.1.1 Group is S, else 3.2 If taxable >= 200000 3.2.1 Group is Q, else 3.3 If taxable >= 100000 3.3.1 Group is M, else 3.4 If taxable >= 50000 3.4.1 Group is A, else 3.5 If taxable >= 20000 3.5.1 Group is R, else 3.6 Group is P 4. Compute tax 4.1 Depending on the group 4.1.1 For S and Q 4.1.1.1 Tax is 25% of taxable 4.1.2 For M 4.1.2.1 Tax is 10% of taxable 4.1.3 For A and R 4.1.3.1 Tax is 3% of taxable 4.1.4 For P 4.1.4.1 Tax is 0.0 4.1.5 For other groups 4.1.5.1 Error! 4.2 If tax > 50000 then 4.2.1 tax = 50000 5. Display tax information 5.1 Display income 5.2 Display deduction 5.3 Display taxable 5.4 Display group 5.5 Display tax 

You must ...

Implement the program in C and put it into a file named tax.c. (4.0%) Internal nodes of the structure chart must be implemented as separate functions. The implementation must follow the design.

IRS Input incomes & deductions Compute taxable income Choose tax group Compute tax Display output Prompt user Input income or deduction Display group, tax owed Difference or 0.0 S,Q,M,AR, PI based on taxable Tax for group Display income, deduction, taxable Apply ceiling