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Grant Parker, manager of Denver Company, wants to compute the variable overhead efficiency variance for the year. He has the following details:

Variable overhead flexible budget variance (unfavorable)	$47,250
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	$60
Actual variable overhead cost per unit of cost-allocation base	$58

What will be the variable overhead efficiency variance for the year? Favorable or unfavorable?