Consider the same CMO as in Question 9 and suppose that in month 10, the beginning balance on tranche A is $1,682,409.07, the beginning balance on tranche B is $2,000,000.00 and the beginning balance on Z is $2,051,581.84. How much cash flow do investors in tranche A receive in month 10?

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.

please explain and thank you!