$\backslash$table$[[$Date$,$Activities,Units,Acquired at$,$Cost,,Units Sold at$,$Retail$],[$January $1,$Beginning inventory,$285$ units,$($a$)$ $$13\mathrm{.}40,=,$$$3,819,,],[$January $10,$Sales,,,,,$250$ units,$($a$)$ $$43\mathrm{.}40$