I need help solving this problem.

Causwell Company began 2016 with 14,000 units of inventory on hand. The cost of each unit was $4.00. During 2016 an additional 34,000 units were purchased at a single unit cost, and 24,000 units remained on hand at the end of 2016 (24,000 units therefore were sold during 2016). Causwell uses a periodic inventory system. Cost of goods sold for 2016, applying the average cost method, is $136,800. The company is interested in determining what cost of goods sold would have been if the FIFO or LIFO methods were used.

Required:1.Determine the cost of goods sold for 2016 using the FIFO method. [Hint:Determine the cost per unit of 2016 purchases.]

FIFO cost of goods sold __________

2.Determine the cost of goods sold for 2016 using the LIFO method.(Do not round intermediate calculations.)

LIFO cost of goods sold ___________