Bluebird Mfg. has received a special one-time order for 15,000 bird feeders at $2.40 per unit. Bluebird currently produces and sells 75,000 units at $6.40 each. This level represents 80% of its capacity. These bird feeders would be marketed under the wholesaler's name and would not affect Bluebird's sales through its normal channels. Production costs for these units are $3.60 per unit, which includes $1.95 variable cost and $1.65 fixed cost. If Bluebird accepts this additional business, the effect on net income will be: Multiple Choice $29,250 increase. O $6,750 increase. $36,000 increase. $18,000 decrease