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  1. //Amari Mosley CSC5 Chapter 6, P. 369, #1
  2. //
  3. /*****************************************************************
  4.  *
  5.  * Calculate Markup
  6.  * _______________________________________________________________
  7.  * This program computes the retail price of an item based on its
  8.  * wholesale cost and markup percentage.
  9.  *
  10.  * Computation is based on the formula:
  11.  *   retail = wholesale + (wholesale * (markup / 100))
  12.  * _______________________________________________________________
  13.  * INPUT
  14.  *   wholesale : the item's wholesale cost (must not be negative)
  15.  *   markup    : the markup percentage (must not be negative)
  16.  *
  17.  * OUTPUT
  18.  *   retail    : the item's retail price
  19.  *
  20.  *****************************************************************/
  21. #include <iostream>
  22. #include <iomanip>
  23. using namespace std;
  24.  
  25. // Function prototype
  26. double calculateRetail(double wholesale, double markup);
  27.  
  28. int main()
  29. {
  30.     double wholesale;   // wholesale cost of the item
  31.     double markup;      // markup percentage
  32.     double retail;      // retail price of the item
  33.  
  34.     // Get wholesale cost with input validation
  35.     cout << "Enter the item's wholesale cost: $";
  36.     cin >> wholesale;
  37.     while (wholesale < 0)
  38.     {
  39.         cout << "Wholesale cost cannot be negative. Please re-enter: $";
  40.         cin >> wholesale;
  41.     }
  42.  
  43.     // Get markup percentage with input validation
  44.     cout << "Enter the markup percentage: ";
  45.     cin >> markup;
  46.     while (markup < 0)
  47.     {
  48.         cout << "Markup percentage cannot be negative. Please re-enter: ";
  49.         cin >> markup;
  50.     }
  51.  
  52.     // Calculate and display the retail price
  53.     retail = calculateRetail(wholesale, markup);
  54.  
  55.     cout << fixed << setprecision(2);
  56.     cout << "The item's retail price is $" << retail << endl;
  57.  
  58.     return 0;
  59. }
  60.  
  61.  
  62.  // calculateRetail
  63.  //   Receives the wholesale cost and markup percentage and
  64.  //   returns the retail price of the item.
  65.  
  66. double calculateRetail(double wholesale, double markup)
  67. {
  68.     return wholesale + (wholesale * (markup / 100));
  69. }
Success #stdin #stdout 0s 5320KB
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Enter the item's wholesale cost: $Enter the markup percentage: The item's retail price is $10.00
https://ideone.com/fpYZTZ
Ch 6. #1
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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