Required information

$[$The following information applies to the questions displayed below.$]$

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

for March.

For specific identification, units sold include $90$ units from beginning inventory, $375$ units from the March $5$ purchase, $85$

units from the March $18$ purchase, and $165$ units from the March $25$ purchase.

Compute the number of units in ending inventory.