Raron's Rockers is in the process of preparing a production cost budget for August. Actual costs in July for 120 rocking chairs were: Materials cost $4,800 Labor cost 3,000 Rent 1,500 Depreciation 2,500 Other fixed costs 3,200 Total $15,000 Materials and labor are the only variable costs. If production and sales are budgeted to increase to 150 chairs in August, how much is the expected total variable cost on the August budget?