Inventory Costing Methods$-$Periodic Method

The Lippert Company uses the periodic inventory system. The following July data are for an item in Lippert's inventory:

$\backslash$table$[[$July$,1,$Beginning inventory,$15,330,$units @$,$$$3,$per unit$],[10,$Purchased,$15,350,$units @$,$$$4,$per unit,$],[15,$Sold,$15,360,$units @$,,,],[26,$Purchased,$15,325,$units @$,$$$5,$per unit,$]]$

Calculate the cost of goods sold for July and ending inventory at July $31$ using $($a$)$ first$-$in$,$ first$-$out, $($b$)$ last$-$in$,$ first$-$out, and $($c$)$ the we

$\backslash$table$[[$A$.,$First$-$in$,$ First$-$out,,$],[,$Ending Inventory,$$,137,905],[$Cost of Goods Sold:,$$,46,110,],[$B$.,$Last$-$in$,$ first$-$out:,,$],[,$Ending Inventory,$$,107,250],[,$Cost of Goods Sold:,$$,76,765],[$C$.,$Weighted$-$average cost:,,$],[$Ending Inventory,$$,91,190,],[,$Cost of Goods Sold,$$,53,765$