Information related to Hickson Company's periodic inventory for October $31$st is given below. Beginning inventory, $300$ units, total cost $$10,$ total cost $$3,000.$ Purchase $1,800$ units, total cost $$10\mathrm{.}40$ each, total cost $$8,320.$ Purchase $2,700$ units, total cost per unit $$10\mathrm{.}80,$ total cost $$7,560.$ Purchase $3,200$ units, total cost $$11\mathrm{.}60$ each, total cost $$2,320.$ Total units, $2,000,$ total cost $$21,200.$ Show calculations to value the cost of goods sold using the first$-$in$,$ first$-$out cost flow assumption if $500$ units remain on hand at October $31$st$.$ Show calculations to value the ending inventory using the weighted average cost flow assumption if $500$ units remain on hand at October $31$st$.$