Question 17 O Mark this question 80 Purchased Units Unit Cost Total Cost November 70 $24 $1,680 December 60 $26 $1,560 January $25 $2,000 Units Available 210 for Sale $5,240 Ending Inventory Units Sold in February 180 Units on Hand 30 Cost of Goods Sold: $4,520 Which inventory method was used to calculate cost of goods sold, based on the information above