Mauro Products distributes a single product, a woven basket whose selling price is $$13$ per unit and whose variable expense is $$9$ per unit. The company$$s monthly fixed expense is $$4,400.$

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.$)$