Question

Computer science help!

A software company sells their software packages for $99.00 each. They would like you to write a program that will calculate and display an invoice for their customers. Quantity discounts are given according to the following table:

Quantity   Discount

1 - 9 No discount

10 – 19 20%

20 – 49 30%

50 - 99 40%

100 or more 50%

Write a C++ program that asks for the customer’s name and the number of software packages sold and computes the total cost of the purchase. Sales tax is 6.5%.

Display an invoice for the customer detailing the customer’s name, the number of software packages purchased, the discount percentage received, the cost of the software packages, the discounted amount received, the total sales, the sales tax, and the total cost of the purchase. (Use appropriate formatting and named/symbolic constants.)

Sample Input/Output:

Please enter the Customer’s Name: Smith CPA Services

Please enter the total number of software package(s) purchased: ? 34

INVOICE for Smith CPA Services

Quantity: 34

Discount: 30.00 %

Software Cost (34 packages at $99.00 each)…….…..$ 3366.00

Discount…………………………………………….....$ 1009.80

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

Total Sales…………………………………….………$ 2356.20

Sales Tax…………………………………………….. $ 153.15

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

Answer 1

Program:

#include <iostream>

#include<string>

using namespace std;

int main() {

string name;//to hold customrer name

cout<<"Please enter the Customer’s Name:";

getline(cin,name);//reading cutomer name

int n;//to hold quantity

double d=0.00;//to hold discount

cout<<"Please enter the total number of software package(s) purchased: ?";

cin>>n;//reading qunatuty//determining discount rate

if(n>=10 && n<=19)

d=20.00;

else if(n>=20 && n<=49)

d=30.00;

else if(n>=50 && n<=99)

d=40.00;

else if(n<9)

d=0.00;

else

d=50.00;

//calculating and printing result

double totalPrice=(n*99);

double discountedPrice=(totalPrice*d)/100;

double taxAmount=(totalPrice-discountedPrice)*0.065;

cout<<"INVOICE for "<<name;

cout<<" Quantity:"<<n;

cout<<" Discount:"<<d<<"%";

cout<<" Software Cost ("<<n<<"packages at $99.00 each)…….…..$"<<totalPrice;

cout<<" Discount…………………………………………….....$"<<discountedPrice;

cout<<" .......................";

cout<<" Total Sales…………………………………….………$"<<(totalPrice-discountedPrice);

cout<<" Sales Tax…………………………………………….. $"<<taxAmount;

}

Output: