Program to calculate compound interest in c++

C++ Program to calculate compound interest. Here more solutions.

// Include header file
#include <iostream>
#include <math.h>
using namespace std;

// C++ program for
// Calculate compound interest

// Method which is take three parameters
// And calculates that compound interest
// Here time is form in year
// rate is form of annual interest rate
void compoundInterest(double principal, 
                      double time, 
                      double rate) {
    // Display parameters values
    cout << "Principal : "  << principal << endl;
    cout << "Time : "  << time << endl;
    cout << "Rate : "  << rate << endl;
    // Calculate interest
    double amount = principal * (pow((1 + rate / 100),time));
    // Display amount
    cout << "Compound Interest : " << amount << endl << endl ;
}

int main() {
    // Test Cases
    // Send principal,time and rate
    compoundInterest(1500, 3, 7.3);
    compoundInterest(170.4, 7, 3.4);
    return 0 ;
}

Output

Principal : 1500
Time : 3
Rate : 7.3
Compound Interest : 1853.06

Principal : 170.4
Time : 7
Rate : 3.4
Compound Interest : 215.334