The company has reported the following actual results for the product for September: Actual output Raw materials purchased Actual cost of raw materials purchased Raw materials used in production Actual direct labor-hours Actual direct labor cost Actual variable overhead cost 10,5ee units 89,900 liters $729,500 87,180 liters 3,760 hours $119,302 $ 20,514 Required: Record your calculations and answers on your worksheet. a. Compute the materials price variance for September b. Compute the materials quantity variance for September c. Compute the labor rate variance for September d. Compute the labor efficiency variance for September e Compute the variable overhead spending variance for September f. Compute the variable overhead efficiency variance for September (Indicate the effect of each variance selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance)