I need help with this please with step by step solution thank you

2/1/20- 5/6/20- 9/18/20- Quantity on Ending Purchase Purchase Purchase Hand as of Inventory Item (Each) (Each) (Each) 12/31/20- Value FIFO LIFO Fuse 5,000 @ $1.20 2,500 @ 1.24 1,000 @ $1.33 2,481 Case 1,500 @ $2.30 1,000 @ 2.32 985 @ $2.35 1,304 Gear 700 @ $4.10 600 @ 4.15 385 @ $4.31 580 Bolt 10,000 @ $.42 5,965 @ .45 7,580 @ $.49 2,390 Total