Please post excel formulas, would be greatly appreciated.

You borrow money on a self liquidating installment loan (equal payments at the end of each year, each payment is part principal part interest) Use the installment method - not straight line Do NOT round any interrmediate numbers. Do NOT turn this into a monthly problem. Do NOT put in minus signs, answer all positive numbers. Required: 1. What is the annual payment (round to the nearest \$)? $ 2. What are the total interest payments (round to the nearest $ )? $ 3. After 18 payments have been made, what percentage of the total interest has been paid (round to the nearest percentage point)? % 4. After 18 payments have been made, what percentage of the total principal has been paid (round to the nearest percentage point)? % Redo the problem if the interest rate is 2% (for a well designed spreadsheet this should take 30 seconds) Required: 5. What is the annual payment (round to the nearest \$)? $ 6. What are the total interest payments (round to the nearest \$)? 6. What are the total interest payments (round to the nearest $ )? $ 7. After 18 payments have been made, what percentage of the total interest has been paid (round to the nearest percentage point)? % 8. After 18 payments have been made, what percentage of the total principal has been paid (round to the nearest percentage point)? %