Some selected financial data from last month are given below. Management decides to increase the sales price by 12.5% (with no effect on unit variable costs) in the coming month. How many units must be sold to earn the same net profit as last month? (Choose the closest one if needed)

4,286

10,000

6,000

7,143

8,333

Sales revenue (10,000 units sold) Less: Variable costs Contribution margin Less: Fixed costs Net operating income Per unit $4.00 $1.50 $2.50 Total $40,000 $15,000 $25,000 $10,000 $15,000