A company had the following purchases and sales during its first year of operations: Purchases Sales January: 6 units 10 units at $120 February 5 units 20 units at $125 May: 15 units at $130 9 units September: 8 units 12 units at $135 13 units November: 10 units at $140 On December 31, there were 26 units remaining in ending inventory. Using the perpetual FIFO inventory costing method, what is the value of cost of goods sold? (Assume all sales were made on the last day of each month) $5,400 O $3,540 O $5,130 O $8,670