Acme Company's production budget for August is 19,500 units and includes the following component unit costs: direct materials, $8.00; direct labor, $12.00; variable overhead, $6.00. Budgeted fixed overhead is $52,000. Actual production in August was 21,450 units. Actual unit component costs incurred during August include direct materials, $10.20; direct labor, $11.40; variable overhead, $7.20. Actual fixed overhead was $55,500. The standard direct labor cost per unit consists of 0.5 hour of labor time at $24 per hour. During August, $244,530 of actual labor cost was incurred for 9,900 direct labor hours. Required Calculate the labor rate variance and labor efficiency variance for August. (Indicate the effect of each variance by selecting variance).) F for favorable, "U for unfavorable, and "None for no effect i.e., zero Labor rate variance