Company sells only one product. The regular selling price is $30 per unit. The entity plans/budgets to sell 600 units. Variable costs are 70% of this selling price, and fixed costs are $4,500 per month. Management decides to increase the selling price from $30 to $35 per unit. Assume that there is no change to the variable expense ratio, no change in fixed costs and the plan/budget is to sell 600 units.

How many units do they need to sell to break-even?