Program to calculate a simple interest

#include "stdio.h"
#include "conio.h"
 
void main()
{
  float principal,rate,time;
  float simpleInterest;
  printf("\nEnter the principal amount ");
  scanf("%f",&principal);
  printf("\nEnter the rate of interest ");
  scanf("%f",&rate);
  printf("\nEnter the time duration ");
  scanf("%f",&time);
  simpleInterest=(principal*rate*time)/100;
  printf("\nThe simple interest is %f",simpleInterest);
getch();
}

Enter the principal amount 50000
Enter the rate of interest 5
Enter the time duration 2
 
The simple interest is 5000