Tally Corp

Tally Corp. sells software during the recruiting seasons. During the current year, 10,000 software packages were sold resulting in $470,000 of sales revenue, $130,000 of variable costs, and $48,000 of fixed costs.
If sales increase by $80,000, operating income will increase by ________. (Round interim calculations to two decimal places and the final answer to the nearest whole dollar.)

A) $30,588
B) $32,000
C) $48,000
D) $57,872