Due to erratic sales of its sole producta high-capacity battery for laptop computersPEM, Incorporated, has been experiencing financial difficulty for some time. The companys contribution format income statement for the most recent month is given below:

Sales (12,500 units $20 per unit)	$ 250,000
Variable expenses	150,000
Contribution margin	100,000
Fixed expenses	112,000
Net operating loss	$ (12,000)

4. Refer to the original data. The Marketing Department thinks that a fancy new package for the laptop computer battery would grow sales. The new package would increase packaging costs by $0.70 per unit. Assuming no other changes, how many units would have to be sold each month to attain a target profit of $4,300?