Swifty, Inc. wants to sell enough product to earn an after-tax net income of $ 38000. If the unit sales price is $ 12, unit variable cost is $ 10, and total fixed costs are $ 51000, how many units must be sold to earn income of $ 38000? Swifty, Inc. has a tax rate of 20%. 49250 units 25500 units 81600 units 71200 units