Question

Write a C++ program that will calculate the total amount of money for book sales at an online store. For each sale, your program should ask the number of books sold and then the price for each book and the shipping method (‘S’ for standard shipping and ‘E’ for expedited shipping). The program will produce a bill showing the subtotal, the sales tax, the discount, the shipping charge, and the final total for the sale.

The program will continue processing the next book sale until the number of books sold is zero.

Sales tax is calculated on the subtotal and is 5%. The discount is also calculated on the subtotal. The store offers no discount if the subtotal is less than $50, 10% discount if subtotal if $50-$100, and 15% discount if the subtotal is above $100. The store will charge $4.99 for standard shipping and $12.99 for expedited shipping.

program must be done as simple as possible doesnt need to be fancy

A sample output of the program should look like follows.

> ./a.out

Book Sale calculator

----------------------------

Enter the number of books in the sale: 5

Enter price: 2.99

Enter price: 12.45

Enter price: 13.23

Enter price: 21.99

Enter price: 24.59

Enter shipping method [S]Standard shipping [E]Expedited shipping: S

Subtotal:               $75.25

Tax:                        $3.76

Discount:               $7.53

Shipping:               $4.99

Total:                     $76.48

Enter the number of books in the sale: ….

Also use the following data to test your program:

• 3 books, $8.99 $12.45 $7.58, Expedited shipping

Subtotal:              $29.02

Tax:                     $1.45

Discount:             $0.00

Shipping:             $12.99

Total:                   $43.46

• 7 books, $5.66 $12.35 $23.56 $40.00 $12.99 $16.32 $11.23, Standard shipping

Subtotal:               $122.11

Tax:                        $6.11

Discount:              $18.32

Shipping:              $4.99

Total:                     $114.89

Answer 1

Here is code:

#include <iostream>

#include <iomanip> // std::setprecision

using namespace std;

int main()

{

int size = 0;

cout << "Enter the number of books in the sale: ";

cin >> size;

float array[size], shipping, tax, discont = 0, total, grandTotal;

char sType;

for (int i = 0; i < size; i++)

{

cout << "Enter price : ";

cin >> array[i];

total += array[i];

}

cout << "Enter shipping method [S]Standard shipping [E]Expedited shipping: ";

cin >> sType;

if (sType == 'S')

{

shipping = 4.99;

}

else if (sType == 'E')

{

shipping = 12.99;

}

else

{

cout << "Invalid entry" << endl;

return 0;

}

if (total >= 50 && total <= 100)

{

discont = total * 0.10;

}

else if (total > 100)

{

discont = total * 0.15;

}

tax = total * 0.05;

grandTotal = total + tax - discont + shipping;

cout << fixed << setprecision(2);

cout << "Subtotal: $" << total << endl;

cout << "Tax: $" << tax << endl;

cout << "Discount: $" << discont << endl;

cout << "Shipping: $" << shipping << endl;

cout << "Total: $" << grandTotal << endl;

return 0;

}

Output: