Robert Company, which applies overhead to production on the basis of machlne hours, reported the following data for the period just ended Actual unlts produced: 12,000 Actual varlable overhead Incurred: $69,700 Actual machlne hours worked 18,200 Standard varlable overhead cost per machine hour: $4.50 02:32:42 If Robert estimates 1.40 hours to manufacture a completed unit, the company's varlable-overhead spending varlance is IS: Multiple Choice $6.300 favorable. $6.300 unfavorable. $12 200 favorable $12,200 unfavorable. None of these