Please provide the correct answer to this general accounting problem using valid calculations.

Parker Manufacturing applies manufacturing overhead to products based on standard direct labor hours. For April, the company budgeted for 5,300 direct labor hours. Budgeted and actual overhead costs for the month are shown below: Original Budget Based on 5,300 Labor Hours Actual Costs Variable overhead costs: Supplies $15,900 $16,450 Indirect labor $42,400 $43,100 Fixed overhead costs: Supervision $23,500 $23,100 Utilities $7,800 $7,350 Factory depreciation $9,600 $9,800 Total overhead cost $99,200 $99,800 The company actually worked 5,650 direct labor hours during April. The standard hours allowed for the actual output were 5,620 direct labor hours. Calculate the overall variable overhead efficiency variance for April