Abbott has a standard variable overhead rate of $5.20 per machine hour, and each unit produced has a standard time allowed of 2.60 hours. The company's static budget was based on 46,000 units. Actual results for the year follow. Actual units produced: 44,000 Actual machine hours worked: 110,000 Actual variable overhead incurred: $550,000 rev: 10_29_2012

Abbott's variable-overhead spending variance is:

$22,000 favorable. $22,000 unfavorable. $22,880 favorable. $22,880 unfavorable. None of these.

Abbott's variable-overhead efficiency variance is:

$22,000 favorable.

$-22,000 unfavorable.

$22,880 favorable.

$-22,880 unfavorable.

None of the above.