The corporation's variable overhead is applied on the basis of direct labor-hours. The standard cost card for product F02E specifies 5.5 direct labor hours per unit. The standard variable overhead rate is $6.80 per direct labor hour. During the recent month, 1,560 of product F02E were made, and 8,700 direct labor hours were worked. The actual variable overhead incurred was $52,635.

1. What was the variable overhead rate variance for the month?
2. What was the variable overhead efficiency variance for the month?