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Required information

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

Hemming Company reported the following current$-$year purchases and sales for its only product.

$\backslash$table$[[$Date$,$Activities,Units,Acquired at$,$Cost,,Units Sold at$,$Retail$],[$January $1,$Beginning inventory,$245$ units,$($a$)$ $$11\mathrm{.}80,=,$$$2,891,,],[$January $10,$Sales,,,,,$190$ units,$($a$)$ $$41\mathrm{.}80$