need help with #2

please include excel formulas

Qurctien 2t. What price thould Blue Algace obtain if the peet is sold imenediately to an investor with a required anenat return of 1105 aad the menthly prepayment rate is 0.1907 The Blue Algae Mortgage Company has originated a pool containing 75 ten-year fixed rate mortgages with an average balance of $100,000 each with 1% origination fee. The annual interest rate on all loans in the pool is 12% and all loans require monthly payments