Answer:
Effect on income= $11,140 increase
Explanation:
Giving the following information:
Contribution margin $126
The marketing manager believes that a $6,500 increase in the monthly advertising budget would result in a 140 unit increase in monthly sales.
To calculate the effect on income, we need to use the following formula:
Effect on income= total contribution margin increase - fixed costs increase
Effect on income= 140*126 - 6,500
Effect on income= $11,140 increase