Overhead information for last quarter of the year

Company uses standard costing.Overhead information for last quarter of the year:Actual overhead incurred:Fixed $10 500Variable $66 810Budgeted fixed overhead $11 000Variable overhead rate per direct labor hour $5Standard hours allowed for actual production 13 100Actual labor hours used 13 000A. What is the variable overhead spending variance?B. What is the variable overhead efficiency variance?(Spending variance is $1 810 unfavorable)