Inventory Costing Methods$-$Perpetual Method

The Lippert Company uses the perpetual inventory

system. The following July data are for an item in

Lippert's inventory:

Calculate the cost of goods sold for the July $15$ sale

using $($a$)$ first$-$in$,$ first$-$out, $($b$)$ last$-$in$,$ first$-$out, and $($c$)$ the

weighted$-$average cost methods. Round your final

answers to the nearest dollar.