calculate compound interest

/*calculate compound interest*/
#include<stdio.h>
#include<math.h>
int main()
{
    float principle,time,rate,CI;
    printf("Enter principle (amount):\n");
    scanf("%f",&principle);
    printf("Enter time: \n");
    scanf("%f",&time);
    printf("Enter rate: \n");
    scanf("%f",&rate);
    CI=principle*pow((1+rate/100),time);
/*compound interest =principle*pow((1+rate/100),time)*/
    printf("Compound Interest = %.2f",CI);
    return 0;

}