c program to find simple interest

Program to find the simple interest:-

#include<stdio.h>
#include<conio.h>
void main()
{
int amount,rate,time,principle;
clrscr();
printf("enter principle amount = ");
scanf("%d",&amount);
printf("\nenter rate of interest = ");
scanf("%d",&rate);
printf("\nenter period of time = ");
scanf("%d",&time);
principle=(amount*rate*time)/100;
printf("\nsimple interest:%d",principle);
getch();
}