Variable costs as a percentage of sales for Lemon Inc. are 80%, current sales are $600,000, and fixed costs are $130,000. How much will operating income change if sales increase by $40,000?

A) $8,000 increase
B) $8,000 decrease
C) $30,000 decrease
D) $30,000 increase

Operating Income

Revenue obtained from the main operations of a business, not including the costs of interest and taxes.

Variable Costs

Expenditures that fluctuate in direct relation to production or sales volumes, such as labor costs and materials used.

Fixed Costs

are expenses that do not change in total over a period of time, regardless of the level of production or sales volume, such as rent or salaries.