This exercise stresses the relationships between the information recorded in a periodic inventory system and the basic elements of an income statement. Each of the five lines represents a separate set of information. You are to fill in the missing amounts. $($Enter loss amounts as a negative number.$)$Net SalesBeginning InventoryNetPurchasesEndingInventoryCost ofGoods SoldGross ProfitExpensesProfit or $($Loss$)$a$\mathrm{.}330,00076,000104,00035,200185,20072,000570,00073,000290,000264,00020,000\mathrm{.}630,000190,000190,000441,000189,000150,000790,000450,000135,000234,000270,000$e$\mathrm{.}156,000290,000450,000120,000(15,000)$