# (Financial application: find the profit-per-item) Use the scheme in programming Exercise 5.39 to write a function that computes the profit-per-item. The header of the function is: double computeProfitPerItem(double quantity) Write a test program that displays the following table:

Sun Nov 08 2020 00:51:22 GMT+0000 (UTC)

Saved by @mahmoud hussein #c++

```#include <iostream>
#include<cmath>
#include<ctime>
#include<string>
#include <iomanip>
#include <fstream>

using namespace std;

int compute_profit(int quantity);

int main()
{
int quantity = 1000;
cout << "Quantity " << setw(9) << "Profit-per-item (in \$)"<<endl;
for ( ; quantity <= 10000; quantity+=1000)
{
cout<<quantity<< setw(9)<<compute_profit(quantity)<<endl;
}

}
int compute_profit(int quantity)
{
int profit = 0;

if (quantity < 1000)
profit += quantity; // * 1
else
{
profit += 1000;
quantity -= 1000;
if (quantity < 4000)
profit += quantity * 2;
else
{
profit += 8000; // 4000 * 2
quantity -= 4000;
profit += quantity * 5;
}
}

return profit;
}

```
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