simple interest using c++

/* Write a C program to find the Simple Interest. Take input for Principle Amount, Rate of Interest and Time from terminal. */

  

#include<iostream>

#include<conio.h>

using namespace std;

int simple_interest(int a,int t,float i)

{

    float si=a*t*i/100;

    return si;

}

int main()

{

    int principle_amount,Time;

    float Interest_rate;

    cout<<"Enter the Principle Amount:"<<endl;

    cin>>principle_amount;

    cout<<"Enter the Time:"<<endl;

    cin>>Time;

    cout<<"Interest_rate"<<endl;

    cin>>Interest_rate;

    cout<<"Interest is:"<<simple_interest(principle_amount,Time,Interest_rate)<<endl;

}