C language-Output print form

//  invest.c
//  DAY05////  Print an investment rate statement//  print 100 yuan for investment in the specified year, and return the proceeds in accordance with the corresponding rate of return. Program output is as follows:
//  rate:  6%			Year: 5/// 		6%			7%          8%        9%         10%
//   1         108 109/
/   2         112.36     114.49      116.64    118.81       121
//   3         119.10     122.50
125.97 129.50 133.10/   4
//   5
//  Created by Apple on 13-6-6.  Copyright (c) 2013 Apple. All rights reserved.

#include <stdio.h>

//rates are calculated iteratively.
double Income (int y,double r) {
    
    double i = 0.0;
    if (y==1) {
        i = m * (1 + R);
        printf ("%.2lf\n", I);
    } else{
        Y-= 1;
        i = income (y, R) * (1 + R);
        printf ("%.2lf\n", I);
    }
    
    return i;
}

int main ()
{
    int year = 0;
    Double rate = 0.0;
    printf ("Please enter interest rate:");
    scanf ("%lf", &rate);
    printf ("Please enter Year:");
    scanf ("%d", &year);
    
    Income (year,rate);
    
    
    return 0;
}