Ann Ahlysis found a co-op apartment that costs $800,000 to buy. She will make a $100,000 down payment and will get a mortgage for $700,000. It will be a fully amortizing 30-year fixed rate mortgage at 3.63% with monthly payments.

(D) Assuming Ann sells her co-op at the end of year 10, what will her mortgage loan balance be at time of sale?