Question 7 - Consider a sequential pay CMO that is backed by 60 mortgages with average balance of $100,000 each. The mortgages have monthly payments with WAM = 15 years and WAC = 4%. There is a servicing fee of 0.6% and prepayment is according to 100% PSA. There are two tranches in this CMO: tranche A issued for $3,000,000 and tranche B issued for $3,000,000. How much cash flow do investors in tranche A receive in the first month?

Question 8 (the one i need help answering) - Using the same CMO as in Question 7 and suppose that in month 10, the beginning balance on tranche A is $2,733,990.91 and the beginning balance on tranche B is $3,000,000. How much cash flow do investors in tranche A receive in month 10?