1. Pearle Corporation makes automotive engines. For the most recent month, budgeted production was 3,300 engines. The standard power cost is $9.20 per machine-hour. The company's standards indicate that each engine requires 2.1 machine-hours. Actual production was 3,400 engines. Actual machine-hours were 7,160 machine-hours. Actual power cost totaled $61,815. Required: Determine the rate and efficiency variances for the variable overhead item power cost and indicate whether those variances are unfavorable or favorable. Show your work