Need Help

[HazelSquare]

been working on this wage calculator for a while and i cannot get it to print the tax and net pay. please someone tell me what ive done wrong.



#include <iostream>
using namespace std;

int main()
{
double wage;
double hours;
double tax_rate;
double Tax;
double gross_pay;
double net_pay;

cout << "Apollyon Bakery\n " << endl;

cout << "Wage Caculator\n " << endl;

cout << "Enter the hourly wage amount :$ ";
cin >> wage;
cout << "Hours worked : ";
cin >> hours;

cout << "You entered the following :" << endl << endl;

cout << "Hourly wage: $ " << wage << endl;
cout << "Hours worked :" << hours << endl;


tax_rate = 0.27 * 100;
cout << "The tax rate is: " << tax_rate << "% " << endl << endl;

gross_pay = wage * hours;
cout << "Gross Pay: $ " << gross_pay << endl;
cin >> gross_pay;

Tax = gross_pay * tax_rate;
cout << "Tax:$ " << Tax << endl;
cin >> Tax;

net_pay = gross_pay - Tax;
cout << "Net Pay: $ " << net_pay << endl;
cin >> net_pay;

system("pause");
return 0;
}

[keskiverto]

What do you mean? You clearly compute and print something there?

Tip: use code tags when posting. It makes commenting easier. For example:

#include <iostream>
using namespace std;

int main()
{
  double wage;
  double hours;
  double tax_rate;
  double Tax;
  double gross_pay;
  double net_pay;

  cout << "Apollyon Bakery\n " << endl;

  cout << "Wage Caculator\n " << endl;

  cout << "Enter the hourly wage amount :$ ";
  cin >> wage;
  cout << "Hours worked : ";
  cin >> hours;

  cout << "You entered the following :" << endl << endl;

  cout << "Hourly wage: $ " << wage << endl;
  cout << "Hours worked :" << hours << endl;


  tax_rate = 0.27 * 100;
  cout << "The tax rate is: " << tax_rate << "% " << endl << endl;

  gross_pay = wage * hours;
  cout << "Gross Pay: $ " << gross_pay << endl;
  cin >> gross_pay;

  Tax = gross_pay * tax_rate;
  cout << "Tax:$ " << Tax << endl;
  cin >> Tax;

  net_pay = gross_pay - Tax;
  cout << "Net Pay: $ " << net_pay << endl;
  cin >> net_pay;

  system("pause");
  return 0;
}

Would you explain lines 33, 37, and 41?

[HazelSquare]

sorry im new to this. I thought i need 33, 37, 41 but looking now i do not. Tax and netpay do not print totals on screen on my end it needs to show that and it does not. what do you mean by code tags?

[keskiverto]

Tags, see: http://www.cplusplus.com/articles/jEywvCM9/

Have you tried without the unwanted cin's?

[HazelSquare]

yes i took those out and it works but now i cannot get it to use a decimal on the Tax and i cannot get the net pay to do right. been at this for 8 hours.

[keskiverto]

Your tax_rate is 27.0.

If your wage has no decimals and hours has no decimals, then gross_pay should not have decimals either.

Number with no decimals * 27 probably has no decimals.

Your net_pay = gross_pay - Tax;
Remember that Tax = gross_pay * tax_rate
Lets substitute that in:
net_pay = gross_pay - gross_pay * tax_rate;
and rearrange:
net_pay = gross_pay * ( 1 - tax_rate );
And substitute: tax_rate = 27

net_pay = gross_pay * ( 1 - 27 );
=>
net_pay = -26 * gross_pay;

Is that really how they should be calculated?