3. Create the necessary formulas to calculate the mortgage payment on a house purchase. a. You will be financing, $500,000. b. Your yearly interest rate is 4%. c. This is a 30-year loan. Use PMT for your calculations. Create a tab 3 Example: Using a different loan amount of $ 800,000. Loan Amount 800,000.00 Annual Interest Rate Monthly interest Rate Number of Years Number of Payment Payment 4.25% 0.35% 30 360 ($3,935.52) 4. Perform goal seek on the above, use you could only afford payments of $2,000.00 a month what would you need the interest rate to be? Write your answer in a new tab 4, but do not save the goal seek results. Your answer should be the original interest rate.