Please add calculations.

The Pizza Merchandise Company has budgeted $55,000 in sales for the month of December. The company's cost of goods sold is 30% of sales. If the company has budgeted to purchase $33,000 in merchandise during December, then the budgeted change in inventory levels over the month of December is: $16,500 increase $5,500 decrease. $22,000 decrease. $18,150 increase