Mauro Products distributes a single product, a woven basket whose selling price is $18 per unit and whose variable expense is $15 per unit. The company's monthly fixed expense is $3,600. Required: 1. Calculate the company's break-even point in unit sales. 2. Calculate the company's break-even point in dollar sales. (Do not round intermediate calculations.) 3. If the company's fixed expenses increase by $600, what would become the new break-even point in unit sales? In dollar sales? (Do not round intermediate calculations.)