C Program to calculate Compound Interest

Program

#include<stdio.h>
#include<math.h>
void main()
{
	float p, r, t, ci, amt;
	printf("Enter the amount, time and rate of interest\n");
	printf("Principal amount:\t");
	scanf("%f", &p);
	printf("Time:\t");
	scanf("%f", &t);
	printf("Rate of interest:\t");
	scanf("%f", &r);
	amt = p * pow((1 + r / 100), t);
	ci = amt - p;
	printf("Compound Interest:\t%f\n", ci);
	printf("Total amount payable:\t%f\n", amt);
}

Output

Enter the amount, time and rate of interest
Principal amount:	1500
Time:	3
Rate of interest:	2.3
Compound Interest:	105.898804
Total amount payable:	1605.898804