Problem: On Willow Grove Department? Stores' most recent balance? sheet, the balance of its inventory at the beginning of the year was $ 12 comma 000. At the end of the? year, the inventory balance was $ 14 comma 500. During that? year, its cost of goods sold was $ 55 comma 000. All purchases of inventory throughout the year were on account. What was the total of Willow Grove's purchases during the? year?