Complete the general journals for both the perpetual inventory system and the periodic inventory system using the following transactions:

a Owner commenced business with cash $15 000 and inventory $7000.

b Cash sale of inventory for $4950 ($4500 + $450 GST). For the perpetual inventory system the cost of the sale is $2800. With the periodic inventory system there are no costs details available.

c Credit purchase of inventory $3300 ($3000 + $300 GST).

d Credit sale of inventory $5500 ($5000 + $500 GST). For the perpetual inventory system the cost of the sale is $3100. With the periodic inventory system there are no costs details available.

e Cash purchase of inventory $2750 ($2500 + $250 GST).