Reference: 11-11
the Clark Company Makes a Single Product and Uses

Reference: 11-11
The Clark Company makes a single product and uses standard costing. Variable overhead is assigned to production on the basis of direct labour hours. Some data concerning this product for the month of May follow: $$\begin{array} { | l | l | l | } \hline \text { Labour rate variance: } & \$ 7,000 & \mathrm {~F} \\\hline \text { Labour efficiency variance: } & \$ 12,000 & \mathrm {~F} \\\hline \text { Variable overhead efficiency variance: } & \$ 4,000 & \mathrm {~F} \\\hline \text { Number of units produced: } & 10,000 & \\\hline \text { Standard labour rate per direct labour hour: } & \$ 12 & \\\hline \text { Standard variable overhead rate per direct labour hour: } & \$ 4 & \\\hline \text { Actual labour hours used: } & 14,000 & \\\hline \text { Actual variable manufacturing overhead costs: } & \$ 58,290 & \\\hline\end{array}$$
-In a standard cost system, if the denominator activity (in hours)used to compute the predetermined overhead rate is equal to the actual activity (in hours)for the period, then there is no volume variance.