Could anyone explain how to calculate this question please.

TB 05-104 A business sold some inventory that had cost... A business sold some inventory that had cost $5,000 before taxes. The sale is subject to 5% goods and services tax (GST) and 7% provincial sales tax (PST). The business uses a perpetual inventory system. How much will be credited to the Merchandise Inventory account as a result of this sale? Multiple Choice O $5,000 O $5,300 O $5,350