Discount on Purchase: C Program

In this c program, we ask the user to input the price of the item and number of items(quantity) purchased. If the quantity is greater than 999 then we’ll give 10% discount orelse there will be no discount.

Related Read:
if else statement in C
Basic Arithmetic Operations In C

Source Code: To Calculate Total Expense

 
#include < stdio.h >

int main()
{
    int qty, dis;
    float rate, total;

    printf("Enter rate and quantity\n");
    scanf("%f %d", &rate, &qty);

    if(qty > 999)
    {
        dis = (qty * rate) * 10 / 100;
    }
    else
    {
        dis = 0;
    }

    total = (rate * qty) - dis;

    printf("Total Paid is Rs %f\n", total);

    return 0;
}

Output 1:
Enter rate and quantity
2
1000
Total Paid is Rs 1800.000000

Output 2:
Enter rate and quantity
2
500
Total Paid is Rs 1000.000000

Here is user purchases more than 999 items(quantity) then we provide a discount of 10%. Its calculated on the total purchase amount – which is calculated by multiplying rate and total quantity.

Discount on Purchase: C Program

According to the program logic, if the user purchases quantity above 999, then he / she will get 10% discount orelse no discount on purchase.

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