Mortgage Affordability. Paul will be able to save S323 per month (which can be used for mortgage payments) for the indefinite future. If Paul finances the remaining cost of a $123,000 home, after making a $24,600 down payment. (amount fo finance $98,400 ) at a rate of 5% over 30 years, what are his resulting monthly morigage payments? Can he afford the mortgage? Pauls resulting monthly mortgage payment is S (Use your and round to the nearest cent.)