Question

Below is the C++ code for a very simple program that calculates the tax and tip amount for the bill at a restaurant then displays all the totals

the code compiles and runs fine but when it displays the values the decimal places are wrong I know you can use setprecision() to help fix this issue but i'm not sure how to implement it

or if there is a more effective way of doing it if someone could look at this help point me in the right direction

/* This program computes the tax and tip on a restaurant bill
for a patron with a $88.67 meal charge. The tax should be 6.75 percent
of the meal cost. The tip should be 20 percent of the total
after adding the tax. Display the meal cost, tax amount, tip amount
and total bill on the screen.
*/
#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
   double Bill = 88.75,
           Tax = .0675,
           SalesTax,        //Holds the sales tax
           Bill_Total,       //Holds the bill total after tax
           Tip_percentage = .2,
           Tip_total,   //Hold the tip total after taxes
           Total;       //Total of bill after tip
  
   SalesTax = Bill * Tax;
  
   Bill_Total = Bill + SalesTax;
  
   Tip_total = Bill_Total * Tip_percentage;
  
   Total = Bill_Total + Tip_total;
  
   //Display Totals
  
   cout<<"The Bill total before taxes is $" << Bill << endl;
   cout<<"The taxes for the meal is $" << SalesTax << endl;
   cout<<"The Bill after taxes is $" << Bill_Total << endl;
   cout<<"The Tip for the meal is $" << Tip_total << endl;
   cout<<"The total after the Taxes and tip is $" << Total << endl;
  
   return 0;  
}

Answer 1

/* This program computes the tax and tip on a restaurant bill
for a patron with a $88.67 meal charge. The tax should be 6.75 percent
of the meal cost. The tip should be 20 percent of the total
after adding the tax. Display the meal cost, tax amount, tip amount
and total bill on the screen.
*/
#include <iostream>
#include <iomanip>

using namespace std;

int main() {
    double Bill = 88.75,
            Tax = .0675,
            SalesTax,        //Holds the sales tax
            Bill_Total,       //Holds the bill total after tax
            Tip_percentage = .2,
            Tip_total,   //Hold the tip total after taxes
            Total;       //Total of bill after tip

    SalesTax = Bill * Tax;

    Bill_Total = Bill + SalesTax;

    Tip_total = Bill_Total * Tip_percentage;

    Total = Bill_Total + Tip_total;

    cout << setprecision(2) << fixed;

    cout << "The Bill total before taxes is $" << Bill << endl;
    cout << "The taxes for the meal is $" << SalesTax << endl;
    cout << "The Bill after taxes is $" << Bill_Total << endl;
    cout << "The Tip for the meal is $" << Tip_total << endl;
    cout << "The total after the Taxes and tip is $" << Total << endl;

    return 0;
}