Capital One produces a single product, which it sells for $9.00 per unit. Variable costs per unit equal $3.60. The company expects short-term fixed costs to be $10,260 for the coming month, at the projected sales level of 30,000 units. Management is considering several alternative actions designed to improve operating results. In conjunction with this, they have created a profit-planning (that is, a CVP) model, which can be used to evaluate different scenarios. Suppose that Capital One's management believes that a $1,600 increase in the monthly promotion costs will provide a boost to sales. By how many units must sales increase during the month to justify the contemplated expenditure? (Round answer up to the nearest whole number.) Multiple Choice 297 units. 178 units 594 units 356 units. None of these answer choices are correct