Vaughn Company has the following inventory information.

July	1		Beginning Inventory	20 units at $80
	5		Purchases	80 units at $70
	14		Sale	40 units
	21		Purchases	20 units at $100
	30		Sale	30 units

Assuming that a perpetual inventory system is used, what is the ending inventory (round all unit costs to three decimal places and all cost of goods sold and balance calculations to nearest dollar) under the moving-average cost method?

$3970

$3930

$3950

$3936