I know the answer is $352,696

but how do you get the answer by using a financial calculator ?? PLEASE HELP

Suppose you are thinking about purchasing a small office building for $1,500,000. The 30 year fixed rate mortgage that you have arranged covers 80% of the purchase price and has an interest rate of 8%. Assume you were to default and go into foreclosure in year 10 of this loan. If the lender was able to sell this property for $700,000, how much does the lender stand to lose in the absence of PMI