Answer:
1. $240
2. $155
3. 154%
Step-by-step explanation:
1. $240 This is calculated as {Closing Balance of job - (Opening Balance of job + Prime cost added to the job during the month)}
{ $1600 - ( $740 + $620 )} = $240.
2. $155 The direct labor cost is calculated as, the prime cost added during the month is $620 which includes 3 parts of material and 1 part of labor which means this cost is made up of 4 figures so we divide the prime cost $620 with 4 which gives us $155.
$465 is the cost of material calculated in a similar way $155 is then multiplied by 3 because prime cost includes 3 parts of material cost. $155 * 3 = $465.
3. Overhead is calculated in 1. above and labor cost is calculated in 2. above both the amounts are divided to find the overhead rate on direct labor which is 154%. ( $240 / $155 * 100).