write a c program to calculate simple intertest

#include <stdio.h>
#include <conio.h>
int main() {
    int principal_amount, time;
    float rate_of_interest, simple_interest;
    printf("Enter principal amount : n");
    scanf("%d",&principal_amount);
	printf("Enter time : n");
    scanf("%d",&time); 
	printf("Enter rate of interest : n");
    scanf("%f",&rate_of_interest); 
	
	simple_interest = principal_amount*time*rate_of_interest/100;
	
	printf("%f is the simple intrest",simple_interest);   
getch();
}