Currently, your firm sells 800 units a month at a price of $78 a unit. You think you can increase your sales by an additional 50 units a month if you switch to a net 30 credit policy. The quarterly compounded APR is 6% and your variable cost per unit is $70. What is the present value for the incremental cash inflow of the proposed credit policy switch? (Do not use the $ sign. If your answer is $1,234.56, enter 1234.56)