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mzimba sofa company has developed the following manufacturing overhead standards

ID: 2498659 • Letter: M

Question

mzimba sofa company has developed the following manufacturing overhead standards for its sofa production.

variable overhead

0.9machine hours @32.00 per machine hour

fixed overhead

0.9machine hours @58.00 per machine hour

manufacturing overhead at mzimba is applied to production on the basis of standard machine hours. the above standards were based on an expected annual volume of 20,000 sofas.

the actual results last year were as follows:

1. what was mzimba's variable overhead rate variance?

2.what was mzimba's variable efficiency variance?

3.what was mzimba's fixed manufacturing overhead volume variance?

plz explain

standard cost per sofa

variable overhead

0.9machine hours @32.00 per machine hour

$28.8

fixed overhead

0.9machine hours @58.00 per machine hour

$52.2

Explanation / Answer

1.Variable overhead rate variance =Standard rate *Actual unit –Actual rate * Actual unit

Variable overhead rate variance=28.8 * 21400 -625086=-8766

Unfavourable

2.. Variable overhead efficiency variance =Standard overhead rate * (Standard hours –Actual hours)

Variable overhead efficiency variance =Standard variable cost-Actual variable cost

                                                                Standard variable cost =28.8 * 20,000=576000

Actual overhead cost=625086

Variable overhead efficiency variance =625086-576000=567486

Favourable

3. Fixed manufacturing overhead volume variance

Fixed manufacturing overhead volume variance =Actual output * Fixed overhead rate –Standard output * Fixed Overhead rate

Fixed manufacturing overhead volume variance =21400*52.2 -20000*52.2=73080