Calculating the Direct Labor Rate Variance and the Direct Labor Efficiency Variance Guillermo's Oil and Lube Company is a service company that offers oil changes and lubrication for automobiles and light trucks, On average, Guillermo has found that a typical oil change takes 30 minutes and 6.2 quarts of oil are used. In June, Gullermo's Oil and Lube had 990 oil changes. Guillermo's Oil and Lube Company provided the following information for the production of all changes during the month of June: Actual number of oil changes performed: 990 Actual number of direct labor hours worked: 490 hours Actual rate paid per direct labor hour: $14.50 Standard rate per direct labor hour: $14.00 Required: If required, round your answers to the nearest cent. 1. Calculate the direct labor rate variance (LRV) and the direct iabor effiency variance (LEV) foc June using the formula approach. 2. Calculate the total direct labor variance for oll changes for June. 3. What if the actual wage rate paid in June was $13.50 ? What impact would that have had on the direct laber rate variance (LRV)? On the direct labor efficiency variance (LEV)? Indicate what the new variances would be below. Direct labor rate variance (LRV): Direct labor efficiency variance (LEV)