Question 16 1 pts A real estate Investor specializes in "flipping" rental houses (he buys a building, and turn around re-sell it for profit). He said his investment objective is to buy at 11", and "to sell at 7", which suggests his expected gross proht margin is 96. (large positive or negative profit margin is possible) Write your answer without %. Eg. If you answer is 21.5%, just write 21.5