Compute gross profit earned by the company for each of the four costing methods. For specific identification, the March 9 sale consisted of 75 units from beginning inventory and 205 units from the March 5 purchase; the March 29 sale consisted of 55 units from the March 18 purchase and 95 units from the March 25 purchase. (Round weighted average cost per unit to two decimals.)

Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March.

Date

Activities

Units Acquired at Cost

Units Sold at Retail

Mar.

1

Beginning inventory

120

units

@ $51.40 per unit

Mar.

5

Purchase

235

units

@ $56.40 per unit

Mar.

9

Sales

280

units

@ $86.40 per unit

Mar.

18

Purchase

95

units

@ $61.40 per unit

Mar.

25

Purchase

170

units

@ $63.40 per unit

Mar.

29

Sales

150

units

@ $96.40 per unit

Totals

620

units

430

units