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 cost$,$Units,Sold at Retail$],[$March $1,$Beginning inventory,$100$ units,@ $$50$ per unit,,$],[$March $5,$Purchase,$400$ units,@ $$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 $5-1$A $($Static$)$ Part $4$

$4.$ Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include $80$ units from beginning inventory, $340$ units from the March $5$ purchase, $40$ 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,FIFO,LIFO,Weighted Average,Specific ID$],[$Sales$,,,,],[$Less: Cost of goods sold,,,,$],[$Gross profit,,,,$]]$