E8-6 (Determining Merchandise AmountsPeriodic) Two or more items are omitted in each of the following tabulations of income statement data. Fill in the amounts that are missing. 2013 2014 2015 Sales revenue $290,000 $ ? $410,000 Sales returns and allowances 11,000 13,000 ? Net sales ? 347,000 ? Beginning inventory 20,000 32,000 ? Ending inventory ? ? ? Purchases ? 260,000 298,000 Purchase returns and allowances5,000 8,000 10,000 Freight-in 8,000 9,000 12,000 Cost of goods sold 233,000 ? 293,000 Gross profit on sales 46,000 91,000 97,000