Check my work Ng Corporation produces and sells only one product; its selling price is $125 and its variable cost is $100 per unit. The company's monthly fixed expense is $24,000. 2. Using the formula method, determine for the dollar sales that are required to earn a target profit before tax of $9,000. 3. Using the formula method, calculate the number of units that need to be sold to earn an after-tax income of $12,000, assuming a tax rate of 20%. Number of units 24,096 units