Exercise 6-12 Estimating ending inventorygross profit method LO6 On January 1, The Parts Store had a $370,000 inventory at cost. During the first quarter of the year, it purchased $1,510,000 of merchandise, returned $19,100, and paid freight charges on purchased merchandise totalling $33,600. During the past several years, the stores gross profit on sales has averaged 30%. Under the assumption the store had $1,920,000 of sales during the first quarter of the year, use the gross profit method to estimate its inventory at the end of the first quarter