Required information Problem 6-1A (Algo) Perpetual: Alternative cost flows LO P1 [The following information applles to the questions displayed below] Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March. Problem 6-1A (Algo) Part 4 4. Compute gross profit earned by the company for each of the four cosung methods. For specific identification, units sold include 135 units from beginning inventory, 265 units from the March 5 purchase, 115 units from the March 18 purchase, and 155 units from the March 25 purchase Note: Round weighted average cost per unit to two decimals and final answers to nearest whole dollar