John Williams, manager of Phoenix Entertainment, wants to compute the variable overhead efficiency variance for the year. He has the following details: Variable overhead flexible budget variance (unfavorable) $23,625 Budgeted input quantity allowed for actual output 9,000 units Actual input quantity used of cost-allocation base used 10,125 units Budgeted variable overhead cost per unit of cost- allocation base $30 Actual variable overhead cost per unit of cost- allocation base $29 What will be the variable overhead efficiency variance for the year