Calculating the Direct Labor Rate variance and the Direct Labor Elfidency Variance Guillermo's Oil and Lube Company is a service company that offers or changes and lubrication for automobiles and light trucks. On average, Cullermo has found that a typical oil change takes 24 minutes and 6.2 cuarts of all are ved in June, Guillermo's ou and Lube had 980 oil changes, Guillermo's out and Lube company provided the following information for the production of oil changes during the month of June Actual number of oil changes performed: 900 Actual number of direct labor hours worked: 386 hours Actual rate bald per direct labor hour $14.50 Standard rate per direct labor hour: $14.00 Required: 1. Calculate the direct labor rate variance (LR) and the direct labor effidency variance (LEV) for June using the formula approach Dir labor rate variance (URV) 193 Unfavorable Direct labor efficiency variance (LEV) 84 Favorable 2. Calculate the direct labor rate variance (RV) and the direct labor efficiency variance (LEV) for June using the graphical approach Direct labor rate variance (LRV) Unfavorable Direct labor efficiency variance (LEV) Favorable 3. Calculate the total direct labor variance for all changes for June Unfavorable - Check My Work 3. Calculate the total direct labor variance for oil changes for Dune. Unfavorable 4. What if the actual wage rate paid in June was $12.40? What impact would that have had on the direct labor rate variance (LRV)? on the direct labor efficiency variance (LEV)? Indicate what the new variances would be below. If required, round your answers to the nearest cent. Direct labor rate variance (LRV): Favorable Direct labor efficiency variance (LEV) Favorable