Hemming Co. reported the following current-year purchases and sales for its only product.

Date

Activities

Units Acquired at Cost

Units Sold at Retail

Jan.

1

Beginning inventory

220

units

@ $10.80

=

$

2,376

Jan.

10

Sales

190

units

@ $40.80

Mar.

14

Purchase

330

units

@ $15.80

=

5,214

Mar.

15

Sales

280

units

@ $40.80

July

30

Purchase

420

units

@ $20.80

=

8,736

Oct.

5

Sales

390

units

@ $40.80

Oct.

26

Purchase

120

units

@ $25.80

=

3,096

Totals

1,090

units

$

19,422

860

units

Required: Hemming uses a perpetual inventory system. 1. Determine the costs assigned to ending inventory and to cost of goods sold using FIFO. 2. Determine the costs assigned to ending inventory and to cost of goods sold using LIFO. 3. Compute the gross margin for FIFO method and LIFO method.