Máy tính giảm nợ

Annual Interest Rate	% per year
Debt Balance	USD
Extra Monthly Debt Payment	USD
Current Monthly Debt Payment	USD

Result:
Total Months to Payoff  (extra payment)	months
Total Months to Payoff  (curent payment)	months
Total Repayment (extra payment)	USD
Total Repayment (current payment)	USD