Answer:
Efficiency variance = $851 favorable
Explanation:
<em>Variable overhead efficiency variance: A variance is the difference between a standard cost and the actual cost. Variable overhead efficiency variance aims to determine whether or not their exist savings or extra cost incurred on variable overhead as a result of workers being faster or slower that expected.
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<em>Since the variable overhead is charged using labour hours, any amount by which the actual labour hours differ from the standard allowable hours would result in a variance</em>
To calculate this variance, we do as follows:
Hours
4,700 should have taken(4,700 × 0.70 hrs) 3,290
but did take (i.e actual hours) 480 <u> 3,060</u>
Efficiency variance in hours 70 unfavorable 230 favourable
Standard variable overhead rate <u>× $3.70</u>
Efficiency variance <em> </em><u><em> 851
</em></u>
Efficiency variance = $851 favorable
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