Required information

Required:

$1-$a$.$ How much will net operating income increase $($decrease$)$ per month if the monthly advertising budget increases by $$8,200,$ the

monthly sales volume increases by $100$ units, and the total monthly sales increase by $$8,500?$

$1-b.$ Should the advertising budget be increased?

Complete this question by entering your answers in the tabs below.

Req $1$A

How much will net operating income increase $($decrease$)$ per month if the monthly advertising budget increases by $$8,200,$

the monthly sales volume increases by $100$ units, and the total monthly sales increase by $$8,500?($Do not round intermediate

calculations.$)$