The opening debt balance of Company B is 18,230, and the repayment is scheduled for 2,150 per month at an annual interest rate of 4.5%.

The closing balance of debt at the end of the month is ______ and the interest payment is ______.

Use the average debt balance to calculate the interest payment.

16,080; 64

20,358; 72

20,380; 76

16,080; 60