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Required information

Use the following information for the Exercises below. $($Static$)$

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Laker Company reported the following January purchases and sales data for its only product. For specific identification, ending inventory consists of $200$ units, where $180$ are from the January $30$ purchase, $5$ are from the January $20$ purchase, and $15$ are from beginning inventory.

Exercise $5-4($Static$)$ Periodic: Gross profit effects of inventory methods LO A$1$