26. Tara, Inc. manufactures a single product in which variable manufacturing overhead is assigned on the basis of direct labor hours. The compan),r uses a standard cost system and has established the following standards for one unit of product: Standard Standard Price Standard Quantity: or Rate Cost Direct materials.......................... 3.0 pounds $3.80 per pound $11.40 Direct labor .............................. 0.75 hours $12.00 per hour $9.00 Variable manufacturing overhead... 0.75 hours $10.00 per hour $7.50 During March, the actual results were as follows: Number of units produced ........................... 12,500 Direct labor hours incurred ........................... 10,200 Pounds of direct materials purchased ............... 42,000 Pounds of direct materials used in production.. ...38,200 Cost of direct materials purchased .................. $157,920 Direct labor cost ....................................... $119,850 Variable overhead cost ................................ $98,940 Required: a. Calculate the materials price variance and determine whether it is favorable or unfavorable. b. Calculate the materials usage variance and determine whether it is favorable or unfavorable. c. Calculate the labor rate variance and determine whether it is favorable or unfavorable d. Calculate the labor efficiency variance and detennine whether it is favorable or unfavorable e. Calculate the variable overhead efficiency variance and determine whether it is favorable or unfavorable. f. Calculate the variable overhead rate variance and determine whether it is favorable or unfavorable