Fabio Corporation is considering eliminating a department that has a contribution margin of $21,000 and $79,000 in fixed costs. Of the fixed costs, $25,500 cannot be avoided. The effect of eliminating this department on Fabio's overall net operating income would be:

a decrease of $58,000.

an increase of $58,000.

a decrease of $32,500.

an increase of $32,500.