A contractor here is town has an income$-$producing property and wants to assess whether she'd be better off keeping it or selling it at the current market rate. Her property is expected to yield cash flows for the owner of $$100,000$ in each of the next five years, with cash flows being received at the end of each period. If her opportunity cost of investment is $10\%$ annually and she expects that the property can be sold for $$800,000$ at the end of the fifth year, what is the income value of the property today?