c program to find simple interest

1//Simple Interest
2#include <stdio.h>
3int main(){
4    int P, R, T, S;
5    printf("Enter the principle: \n");
6    scanf("%d", &P);
7    printf("Enter the rate: \n");
8    scanf("%d", &R);
9    printf("Enter the time(in Years): \n");
10    scanf("%d", &T);
11
12    S = (P * R/100 * T) / 100 ;
13    printf("Simple interest is %d\n", S);
14}