Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March.

$\backslash$table$[[$Date$,$Activities,Units,Acquired at Cos,$],[$March $1,$Beginning inventory,$100$ units,a $$50$ per unit,$],[$March $5,$Purchase,$400$ units,a $$55$ per unit,$],[$March $9,$Sales,,,$420$ units @ $$85$ per unit$],[$March $18,$Purchase,$120$ units,@ $$60$ per unit,$],[$March $25,$Purchase,$200$ units,@ $$62$ per unit,$],[$March $29,$Sales,,,$160$ units @ $$95$ per unit$],[,$Totals,$820$ units,,$580$ units$]]$

Problem $5-2$AA $($Static$)$ Part $4$

$4.$ Compute gross profit earned by the company for each of the four costing methods. For specific identification, the March $9$ sale consisted of $80$ units from beginning inventory and $340$ units from the March $5$ purchase; the March $29$ sale consisted of $40$ units from the March $18$ purchase and $120$ units from the March $25$ purchase.

Note: Round weighted average cost per unit to $2$ decimal places.

$\backslash$table$[[$Gross Margin,,,,,,Cost,,c ID$],[$Sales$,$$$,50,900,$$$,50,900,$$$,50,900,$$$,50,900],[$Less: Cost of goods sold,,,,,,$44,280,,32,540],[$Gross profit,,,,,,,,$]]$