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Problem 5—1A Perpetual: Alternative cost ?ows LO P1 [The following information applies to the questions displayed below. ] Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March.Date Activities Units Acquired at Cost Units Sold at RetailMar. 1 Beginning inventory 80 units a $50.60 per unitMar. 5 Purchase 215 units 6 $55.60 per unitMar. 9 Sales 240 units (a. $85.60 per unitMar. 18 Purchase 75 units Q $60.60 per unitMar. 25 Purchase 130 units a $62.60 per unitMar. 29 Sales 110 units @ $95.60 per unit Totals 500 units 350 units \ Problem 5-1A Part 4 4. Compute gross profit earned by the company for each of the four costing methods. For speci?c identi?cation, the March 9 saleconsisted of 55 units from beginning inventory and 185 units from the March 5 purchase; the March 29 sale consisted of 35 units fromthe March 18 purchase and 75 units from the March 25 purchase. (Round weighted average cost per unit to two decimals and finalanswers to nearest whole dollar.)