Response to the following problem:
In 2011, Carow sold 3,000 units at $500 each. Variable expenses were $250 per unit, and fixed expenses were $200,000. The same selling price is expected for 2012. Carow is tentatively planning to invest in equipment that would increase fixed costs by 20%, while decreasing variable costs per unit by 20%. What is Carow's break-even point in units for 2012?