Question 1050773
your solution, as i understand and interpret the problem is shown below:


the concept used is:


your remaining balance is 900 at month 0.
month 0 is the beginning of month 1.
month 1 is the end of month 1 and the beginning of month 2.
etc.


pmt is the monthly payment of 150 that is made at the end of each month.


int is the interest rate that is calculated from the remaining balance of the previous month.


in month 1, the interest rate is .02 * 900 = 18.00.
in month 2, the interest rate is .02 * 828 = 16.56.
etc.


chg is the amount of additional purchases made during the previous month.


for example, the 60 shown in month 1 is the amount of additional charges incurred between month 0 and month 1.   


that means the additional charges incurred between the beginning of month 1 and the end of month 1.


the balance is paid off in month 12.


the negative balance is the credit you would receive back because you paid more than was in the account.


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