Exhibit $6-5$

Estrada Incorporated produces two different products with the following monthly data.

Charcoal Barbecues

Gas Barbecues

Total

Selling price per unit

$$150$

$$600$

Variable cost per unit

$ $60$

$$360$

Expected unit sales

$1,400$

$600$

$2,000$

Sales mix

$70\%$

$30\%$

$100\%$

Fixed costs

$$180,000$

Refer to Exhibit $6-5.$ What would be the operating profit if the Charcoal Barbecue sales volume increases $100$ units with a corresponding decrease of $100$ units in Gas Barbecue sales?

Group of answer choices

$$24,000$

$$75,000$

$$9,000$

$$105,000$

None of the answer choices is correct.