You have agreed to loan some money to a friend at a simple interest rate of $157\%$ per year. Your friend hasn't taken this class; all they know is that they can pay you back $$500$ in $4$ weeks.

How much money do you give your friend today so that the repayment of $$500$ in $4$ weeks is equivalent to a simple interest loan with a rate of $157\%$ per year? Round your answer to the nearest dollar.