Variable manufacturing overhead incurred was $245,000. Fixed manufacturing overhead incurred was $373,000. Actual machine-hours were 28,400. 1. Prepare an analysis of all variable manufacturing overh

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The Lopez Company use a standard costing in its manufacturing plant for the auto part. The standard cost of particular auto part based on a denominator level of a 4.000 output unit per year. included 6 machine-hours of variable manufacturing overhead at $8 per hour and 6 machine-hours of fixed manufacturing overhead at $15 per hour.

Actual output produced was 4.400 units.

Variable manufacturing overhead incurred was $245.000.

Fixed manufacturing overhead incurred was $373.000.

Actual machine-hours were 28.400.

Prepare the analysis of all variable manufacturing overhead and fixed manufacturing overhead variances.

Additional diagram attached to this question is displayed in the first image below.

Explanation:

By using a columnar method, the analysis of all the variance & fixed manufacturing overhead varaince can be computed as follows:

Variable manufacturing overhead analysis:

Actual cost Incurred: ║ Actual input ×  Budgeted ║ Allocated: Budgeted

Actual input × Actual     rate                                        Input for actual output

rate                                                                               × Budgeted rate

245000                         28400×$8.00 = 227200      (4400×6hrs×$8)

                                                                                      = 211,200

                17800 U                    16800  U

            Spending Variance      Efficiency Variance

                                      33800 U

                                Flexible Budget Variance

Hence;

The spending Variance = $17,800 U

Efficiency Variance  = $16,000 U

Flexible Budget Varaince = $33800 U

where;   F = Favourable  & U = Unfavourable

For the fixed Manufacturing Overhead:

Actual cost Incurred: ║ Flexible Budget Lump ║ Allocated: Budgeted

Actual input × Actual     sum regardless of the    Input for actual output

rate                                 output level                     × Budgeted rate

373000                        4000×6hrs×15 = 360000  (4400×6hrs×$15)

                                                                                      = 396000

13000 U                                   36000  F

Spending Variance/               Production-Volume

Flexible budgeted variance   Variance

                                                 23000 F

                                        Over allocated fixed

                                        Overhead

Hence;

The spending Variance = $13000 U

The production Volume Variance  = $36,000 F

Over allocated fixed overhead = $23000 F

where;   F = Favourable  & U = Unfavourable

NOTE: To have a better view of the above computation in a table format, refer to the second and the third diagram in the image below.

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