S_chapter_5 prblm_3 loan interest

#include<stdio.h>
int main()
//find loan interest
{

    double loan_amount,interest_rate,number_of_year,total_amount,monthly_amount;
    printf("Enter loan amount: ");
    scanf("%lf",&loan_amount);
    printf("Enter interest rate: ");
    scanf("%lf",&interest_rate);
    printf("Enter number of year: ");
    scanf("%lf",&number_of_year);

    total_amount=loan_amount+loan_amount*interest_rate/100;
    monthly_amount=total_amount/(number_of_year*12);

    printf("total amount : %0.2lf",total_amount);
    printf("monthly amount : %0.2lf",monthly_amount);
        return 0;
}