pok int The standard cost card for a unit of Product AX at the Cleaning Chemicals Corp. shows the following standard cost information: Materials: 2 gallons at $14 per gallon Labor: 3 hours at $10 per hour Overhead: 60% of direct labor Total $ 28 30 18 $ 76 During the month of October 20X1, Job O-3 was completed. It was the only job worked on during October. Four thousand seven hundred units were produced from the job. The actual costs were as shown below: Materials: 9,200 gallons at $13.90 per gallon Labor: 14,000 hours at $9.80 per hour Print Actual overhead erences Total $127,880 137,200 82,320 $347,400 Required: Calculate the rate variance for labor for the month. (Indicate the effect of the variance by selecting "Favorable", "Unfavorable", and "None" for no effect (i.e., zero variance).) Standard labor rate Actual labor rate Actual hours Total rate variance for labor