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Required information

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

$4.$ Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include $50$ units from beginning inventory, $180$ units from the March $5$ purchase, $30$ units from the March $18$ purchase, and $70$ units from the March $25$ purchase.

Note: Round weighted average cost per unit to two decimals and final answers to nearest whole dollar.

$\backslash$table$[[$Gross Margin,FIFO,LIFO,$\backslash$table$[[$Weighted$],[$Average$]],$Specific ID$],[$Sales$,,,,],[$Less: Cost of goods sold,,,,$],[$Gross profit,,,,$]]$