Marigold Corp. had 290 units of product A on hand at January 1, 2020, costing $19 each. Purchases of product A during January were as follows: Date Unit Cost Units 380 Jan. 10 18 540 $20 21 22 28 180 A physical count on January 31, 2020 shows 410 units of product A on hand. The cost of the inventory at January 31, 2020 under the LIFO method is O $8790. O $7610. $7910. $8310