Montoure Company uses a perpetual inventory system. It entered into the following calendar-year purchases and sales transactions.

Date

Activities

Units Acquired at Cost

Units Sold at Retail

Jan.

1

Beginning inventory

660

units

@ $55 per unit

Feb.

10

Purchase

330

units

@ $52 per unit

Mar.

13

Purchase

110

units

@ $40 per unit

Mar.

15

Sales

780

units

@ $75 per unit

Aug.

21

Purchase

140

units

@ $60 per unit

Sept.

5

Purchase

420

units

@ $56 per unit

Sept.

10

Sales

560

units

@ $75 per unit

Totals

1,660

units

1,340

units

Cost of goods available for sale	$89,780
Number of units available for sale	1,660	units

Ending inventory

320

units

		Ending Inventory
(a)	FIFO	$17,920
(b)	LIFO	$17,600
(c)	Weighted average	$17,728
(d)	Specific identification	$17,720

Required:

4. Compute gross profit earned by the company for each of the four costing methods. (Round your average cost per unit to 2 decimal places.)