Stuck on C++ program to calculate price and tax

[gator6688]

I have to write a program that asks for a cost-per-item, number of items purchased, and a discount rate. Then it should calculate the total cost, tax due, and amount due.

I have to use the formulas:
total cost = number of items * cost-per-item
total cost (discounted) = total cost - (discount rate * total cost)
tax due = total cost * TAXRATE
amount due = total cost + tax due

I am going to put what I have so far. Any suggestions would be helpful. Also, how do I put the discount rate as a percentage?

#include "stdafx.h"
#include <iostream>
#include <iomanip>
using namespace std;
 
int _tmain(int argc, _TCHAR* argv[])
{
    const float TAXRATE = 0.06f;
    double costPerItem, itemsPurchased, discountRate, totalCost, taxDue, totalCostDiscounted;
 
    cout <<"\nEnter the cost-per-item: ";
    cin >> costPerItem;
    cout <<"\nEnter the number of items purchased: ";
    cin >> itemsPurchased;
    cout <<"\nEnter the discount rate: ";
    cin >> discountRate;
 
    totalCost = itemsPurchased * costPerItem;
    totalCostDiscounted = totalCost - (discountRate * totalCost);
    taxDue = totalCost * TAXRATE;
    cout << setiosflags (ios::fixed)
         << setiosflags (ios::showpoint)
         << setprecision(2);
 
    cout <<"\nThe total cost is: " << setw(4) << costPerItem*itemsPurchased  << endl;
    cout <<"\nThe tax due is: " <<setw(4)<<costPerItem*itemsPurchased*TAXRATE << endl;
    cout <<"\nThe amount due is: "<<setw(4)<<totalCost + taxDue<<endl;
 
    return 0;
}

[Savage]

I have to write a program that asks for a cost-per-item, number of items purchased, and a discount rate. Then it should calculate the total cost, tax due, and amount due.

I have to use the formulas:
total cost = number of items * cost-per-item
total cost (discounted) = total cost - (discount rate * total cost)
tax due = total cost * TAXRATE
amount due = total cost + tax due

I am going to put what I have so far. Any suggestions would be helpful. Also, how do I put the discount rate as a percentage?


#include "stdafx.h"
#include <iostream>
#include <iomanip>
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
const float TAXRATE = 0.06f;
double costPerItem, itemsPurchased, discountRate, totalCost, taxDue, totalCostDiscou nted;

cout <<"\nEnter the cost-per-item: ";
cin >> costPerItem;
cout <<"\nEnter the number of items purchased: ";
cin >> itemsPurchased;
cout <<"\nEnter the discount rate: ";
cin >> discountRate;

totalCost = itemsPurchased * costPerItem;
totalCostDiscou nted = totalCost - (discountRate * totalCost);
taxDue = totalCost * TAXRATE;
cout << setiosflags (ios::fixed)
<< setiosflags (ios::showpoint )
<< setprecision(2) ;

cout <<"\nThe total cost is: " << setw(4) << costPerItem*ite msPurchased << endl;
cout <<"\nThe tax due is: " <<setw(4)<<cost PerItem*itemsPu rchased*TAXRATE << endl;
cout <<"\nThe amount due is: "<<setw(4)<<tot alCost + taxDue<<endl;

return 0;
}

Suggestions you say,hmm.How about couting totalCost and taxDue instead of:

    cout <<"\nThe total cost is: " << setw(4) << costPerItem*itemsPurchased  << endl;
    cout <<"\nThe tax due is: " <<setw(4)<<costPerItem*itemsPurchased*TAXRATE << endl;

??

Also please use code tags for your code.

Oh,and one more question:

" Also, how do I put the discount rate as a percentage?"

Do you mean output it as percantage,inpu t it as percantage or both?

Savage

[gator6688]

I am not really sure what a code tag is? I also figured out the percent question. Thanks for the help.

[Savage]

I am not really sure what a code tag is? I also figured out the percent question. Thanks for the help.

You see # button in a message editor,well those arr code tags.

Savage