#include<stdio.h>

void main()
{
    float amount,interest,rate_int,new_amount;
    int period,year;
    rate_int=0.9;

    printf("Amount =>");
    if(scanf("%f",&amount)==1)
    {
        printf("Period");
        if(scanf("%d",&period)==1)
        {
        
            for(year=0;year<=period;year++)
            {
            printf("%9.2f\t ",amount);
            interest=amount*rate_int;
            new_amount=amount+interest;
            amount=new_amount;
            printf("%2d\t %9.2f\n",year,new_amount);
            }
                  printf("The new amount is Rs.  %0.2f",new_amount);
        }
        else
        {
            printf("error,enter correct value");
        }

    }
    else
    {
        printf("error,enter correct value");
    }
    
}
===========================================OUTPUT========================
Amount =>12000
Period =>5
 12000.00         0       22800.00
 22800.00         1       43320.00
 43320.00         2       82308.00
 82308.00         3      156385.20
156385.20         4      297131.88
297131.88         5      564550.56
The new amount is Rs.  564550.50