calculate sales tax

[Joe Estock]

After a lot of playing around here is what I not have:

#include <stdio.h>
#define STAX .0825

int main(){
double price;
printf("What is the price?\n");
scanf("%f", &price);
printf("%f\n", (double)price);

Why the unnecessary cast to a double when price is already declared as such?

price = price * STAX;
printf("The sales tax is: %.2f\n", price);

Use %lf as another poster in this thread suggested.

return 0;
}

When prompted for a price I put in 9.99 and here is what is returned:

What is the price?
9.99
521666.640505
The sales tax is: 43037.50

Not exactly what I expected.

Joe

 

[pete]

I dont understand what you mean.

scanf("%d", &price);

 

[Bart C]

#define STAX .0825

price = (price + (price * STAX));
printf("The sales tax is: %.2f\n", price);

What is the price?
100
100.00
The sales tax is: 108.25

The *tax* is $108.25? On $100.00? Only if the sales tax is 108.25%.