A note on “flexible budgets, variances and management control” terms (I) in advanced management accounting study

A note on “flexible budgets, variances and management control” terms (I) in advanced management accounting study

Briefly describe the following “flexible budgets, variances and management control” terms (I) in advanced management accounting study

(Terms used in Chapter 15)

 

1.    Static budgets and flexible budgets defined

2.    Static-budget variances

3.    Steps in developing a flexible budget

4.    Variances: flexible-budget variances, sales-volume variances, price variances and efficiency variances for inputs

5.    Management uses of variances

6.    Flexible budgeting and activity-based costing

7.    Benchmarking and variance analysis

 

Flexible budgets make performance evaluation fairer by recalculating budgeted revenues and costs for the actual activity level. Variance analysis then separates deviations caused by volume from those caused by prices, input usage, or operational execution.

1. Budget types

• Static budget: A budget prepared for one planned level of output or activity and not revised when actual activity differs. For example, it may be based on sales of 10,000 units.
• Flexible budget: A budget that adjusts revenues and variable costs to the actual output or cost-driver level, while fixed costs normally remain constant within the relevant range. It answers: “What should costs and revenues have been at the activity actually achieved?”

2. Static-budget variance

The static-budget variance is the difference between actual results and the original static budget:

Static-budget variance=Actual result−Static-budget amount

It captures the overall departure from the original plan, but it mixes two effects:

• A change in sales or production volume.
• A change in selling prices, input prices, efficiency, and cost control.

Therefore, it is useful as a high-level planning comparison but can be misleading for evaluating managers when actual activity differs substantially from planned activity.

3. Flexible-budget development

Typical steps are:

1.    Identify the relevant activity measure(s) or cost driver(s), such as units produced, labour-hours, machine-hours, customer orders, or batches.

2.    Classify each revenue and cost as variable, fixed, or mixed.

3.    Estimate budgeted selling prices, variable cost rates, fixed costs, and input standards.

4.    Form budget equations. A common cost equation is:

Flexible-budget cost = Fixed cost + (Budgeted variable cost per driver × Actual driver quantity)

 

Insert the actual activity level to calculate flexible-budget revenues and costs.

5.    Compare actual results with this flexible budget and investigate material variances.

4. Main variances

Variance	Comparison	What it indicates
Flexible-budget variance	Actual result versus flexible-budget result	Performance differences after controlling for actual activity volume
Sales-volume variance	Flexible-budget result versus static-budget result	Effect of selling/ producing a different volume from that originally budgeted
Input price variance	Actual input price versus standard/ budgeted price, using actual input quantity	Purchasing-price or wage-rate performance
Input efficiency variance	Actual input quantity versus standard quantity allowed for actual output, using standard price	Operational efficiency in using materials, labour-hours, machine-hours, or another input

A common profit-oriented decomposition is:

Static-budget variance = Sales-volume variance + Flexible-budget variance

For an input such as direct materials:

Price variance=AQ(AP−SP

Efficiency variance=SP(AQ−SQ)

Where AQAQAQ is actual quantity, APAPAP actual price, SPSPSP standard price, and SQSQSQ standard quantity allowed for actual output. Price variances use actual quantity; efficiency variances value the quantity difference at the standard price.

A variance is generally favourable when it improves operating income—for example, actual cost is below the flexible-budget cost. It is unfavourable when it reduces operating income.

5. Management use

Managers use variances to:

• Apply management by exception: focus attention on significant or unusual deviations rather than reviewing every item.
• Diagnose whether a problem comes from sales demand, selling price, procurement, labour rates, materials waste, productivity, or overhead consumption.
• Assign responsibility appropriately—for example, purchasing may influence material price, while production may influence material usage.
• Support corrective action, revised forecasts, resource allocation, and learning for future budgets.
• Evaluate performance only after considering controllability and possible trade-offs. For example, buying cheaper materials may create a favourable price variance but lead to higher scrap and an unfavourable efficiency variance.

Variances signal where to investigate; they do not by themselves establish the cause or prove that a manager performed well or poorly.

6. Flexible budgets with ABC

With activity-based costing (ABC), flexible budgets use multiple activity cost drivers rather than a single volume measure such as units produced or direct labour-hours. Costs may vary with:

• Number of production batches.
• Purchase orders processed.
• Setups performed.
• Customer deliveries.
• Product designs or engineering changes.

For each activity cost pool, management develops a flexible-budget formula based on its own driver. Variance analysis is then conducted per activity, generally distinguishing:

• A spending variance: actual cost versus flexible-budgeted cost for the activity.
• An efficiency variance: actual driver usage versus the budgeted driver quantity allowed for the actual output.

ABC therefore gives more diagnostically useful control information in complex operations, especially where overhead is driven by batch-level or product-sustaining activities rather than unit volume.

7. Benchmarking and variance analysis

Benchmarking is the continuous comparison of an organisation’s processes, activity costs, quality, time, and performance measures against best-in-class organisations, competitors, or comparable internal units.

Variance analysis compares actual performance to an internal budget or standard; benchmarking challenges whether that internal standard is demanding enough in the first place.

Together, they strengthen management control:

• Variance analysis asks: “Did we meet our standard?”
• Benchmarking asks: “Is our standard competitive or best practice?”
• The benchmark can be used to revise standards, improve processes, and set more realistic—but stretching—future flexible-budget rates and efficiency targets.