The Claussens are considering the purchase of a hardware store. The Claussens anticipate that the store will generate cash flows of $$79,000$ per year for $20$ years. At the end of $20$ years, they intend to sell the store for an estimated $$490,000.$ The Claussens will finance the investment with a variable rate mortgage. Interest rates will increase twice during the $20-$year life of the mortgage. Accordingly, the Claussens' desired rate of return on this investment varies as follows:

$\backslash$table$[[$Years$,1-5,8\%$