Acme Company’s production budget for August is 19,100 units and includes the following component unit costs: direct materials, $9.0; direct labor, $11.5; variable overhead, $5.0. Budgeted fixed overhead is $48,000. Actual production in August was 21,942 units. Actual unit component costs incurred during August include direct materials, $10.00; direct labor, $11.00; variable overhead, $7.00. Actual fixed overhead was $51,100. The standard variable overhead rate per unit consists of $5.0 per machine hour and each unit is allowed a standard of 1 hour of machine time. During August, $153,594 of actual variable overhead cost was incurred for 25,599 machine hours. Required: Calculate the variable overhead spending variance and the variable overhead efficiency variance.