Hello there!!!
You got all the answers correct
Answer to Subpart 1 is correct
Answer to Subpart 2 is also correct
In Answer to Subpart 3 is correct for the parts of FIFO, LIFO, and Specific Id methods
It seems that there is a problem in Average Method - Hence the same is Re-Iterated as under

Montoure Company uses a perpetual Inventory system. It entered into the following calendar year purchases and...
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 600 units $40 per unit Feb. 10 Purchase 400 units@ $37 per unit Mar. 13 Purchase 190 units@ $15 per unit Mar. 15 Sales 805 units@ $70 per unit Aug. 21 Purchase 190 units @ $45 per unit Sept. 5 Purchase 550 units @ $43 per unit Sept. 10...
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
620
units
@ $45 per unit
Feb.
10
Purchase
310
units
@ $42 per unit
Mar.
13
Purchase
120
units
@ $30 per unit
Mar.
15
Sales
770
units
@ $85 per unit
Aug.
21
Purchase
190
units
@ $50 per unit
Sept.
5
Purchase
520
units
@ $48...
Montoure Company uses a perpetual inventory system. It entered into the following calendar-year purchases and sales transactions Units Sold at Retail Units Required at Cost 620 units $45 per unit 380 units $42 per unit 100 units $30 per unit Date Activities Jan. 1 Beginning inventory Peb. 10 Purchase Mar. 13 Purchase Mar. 15 Sales Aug. 21 Purchase Sept. 5 Purchase Sept. 10 Sales Totale 735 units $70 per unit 170 units 400 units $50 per unit 346 per unit...
Montoure Company uses a perpetual inventory system. It entered into the following calendar-year purchases and sales transactions Units Sold at Retail Units Acquired at Cost 620 units@ $45 per unit 310 units @ $42 per unit 120 units @ $30 per unit Date Activities Jan. 1 Beginning inventory Feb. 10 Purchase Mar. 13 Purchase Mar. 15 Sales Aug. 21 Purchase Sept. 5 Purchase Sept. 10 Sales Totals 770 units@ $85 per unit 190 units @ $50 per unit 520 units...
Montoure Company uses a perpetual inventory system. It entered into the following calendar-year purchases Date Activities Units Acquired at Cost Units sold at Retail Jan. 1 Beginning inventory 540 units @ $40 per unit Feb. 10 Purchase 320 units @ $36 per unit Mar. 13 Purchase 100 units @ $24 per unit Mar. 15 Sales 650 units @ $85 per unit Aug. 21 Purchase 120 units @ $45 per unit Sept. 5 Purchase 520 units @ $41 per unit Sept....
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
600
units
@ $35 per unit
Feb.
10
Purchase
300
units
@ $32 per unit
Mar.
13
Purchase
150
units
@ $20 per unit
Mar.
15
Sales
725
units
@ $80 per unit
Aug.
21
Purchase
190
units
@ $40 per unit
Sept.
5
Purchase
540
units
@ $37...
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 600 units @ $40 per unit Feb. 10 Purchase 400 units @ $37 per unit Mar. 13 Purchase 190 units @ $15 per unit Mar. 15 Sales 805 units @ $70 per unit Aug. 21 Purchase 190 units @ $45 per unit Sept. 5 Purchase 550 units @ $43...
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 600 units @ $40 per unit Feb. 10 Purchase 400 units @ $37 per unit Mar. 13 Purchase 190 units @ $15 per unit Mar. 15 Sales 805 units @ $70 per unit Aug. 21 Purchase 190 units @ $45 per unit Sept. 5 Purchase 550 units @ $43...
Montoure Company uses a perpetual inventory system. It entered into the following calendar year purchases and sales transactions Units Acquired at Cost Units Sold at Retail 660 units @ $35 per unit 330 units@ $32 per unit 110 units @ $20 per unit Date Activities Jan. 1 Beginning inventory Feb. 10 Purchase Mar. 13 Purchase Mar. 15 Sales Aug. 21 Purchase Sept. 5 Purchase Sept. 10 Sales Totals 760 units @ $75 per unit 180 units @ $40 per unit...