used. In June, Guillermo's Oil and Lube had 950 oil changes. Guillermo's Oil and Lube Company provided the following information for the production of oil changes during the month of June: Actual number of oil changes performed: 950 Actual number of direct labor hours worked: 281 hours Actual rate paid per direct labor hour: $16.00 Standard rate per direct labor hour: $15.50 Required: 1. Calculate the direct labor rate variance (LRV) and the direct labor efficiency variance (LEV) for June using the formula approach. Direct labor rate variance (LRV) : Direct labor efficiency variance (LEV) \& 2. Calculate the direct labor rate variance (LRV) and the direct labor efficiency variance (LEV) for June. Direct labor rate variance (LRV) \& Direct labor efficiency variance (LEV) : 3. Calculate the total direct labor variance for oil changes for June. required, round your answers to the nearest cent. Direct labor rate variance (LRV): Direct labor efficiency variance (LEV)