On 1 October, Coopers Appliance purchased $8800 of goods including GST for resale. On 11 October, it sold $4500 of these goods that cost $4400 including GST to customers at a selling price of $6600 (including GST). The business uses a perpetual inventory system, and all transactions were for cash. Required:

Prepare the following accounts to record this information: Cash at bank, Inventory, Costs of goods sold and Sales.