Please Help !! I keep getting 3 & 4 wrong and I have no idea what im doing wrong :(( Please Please Help

6 value: 8.00 points Lou Barlow, a divisional manager for Sage Company, has an opportunity to manufacture and sell one of two new products for a five-year period. His annual pay raises are determined by his division's return on investment (ROI), which has exceeded 21% each of the last three years. He has computed the cost and revenue estimates for each product as follows: Product A Product B Initial investment Cost of equipment (zero salvage value $270,000 480,000 Annual revenues and costs: Sales revenues Variable expenses Depreciation expense Fixed out-of $320,000 420,000 $148,000 198,000 S 41,000 S 83,000 S 77,000 57,000 costs The company's discount rate is 19%. Click here to view Exhibit 13B-1 and Exhibit 13B-2, to determine the appropriate discount factor using tables