A company that has operated with a 30% average gross profit ratio for a number of years had $300,000 in sales during the first quarter of this year. If it began the quarter with $54,000 of Inventory at cost and purchased $216,000 of Inventory during the quarter, Its estimated ending Inventory using the gross profit method is: $90,000 $63,000 $60.000 $54,000 $81,000