UAL2-U3-L05 · University Accounting Level 2
Flexible budgets and performance variances
Learning goals
- Build a flexible budget for actual activity.
- Separate sales-volume effects from revenue and spending performance.
- Interpret variances with non-financial evidence and controllability.
Prerequisite check
Comparing actual cost at 12,000 units with a static budget for 10,000 units confuses activity and cost control. A flexible budget recalculates variable amounts for actual volume while keeping fixed-cost assumptions within the relevant range.
Vocabulary
- Static budget: plan for one activity level.
- Flexible budget: budget recalculated for actual activity.
- Sales-volume variance: effect of actual volume differing from planned volume at budgeted economics.
- Revenue/spending variance: actual result compared with flexible-budget amount.
- Controllability: degree a manager can influence an item in the relevant time horizon.
Core idea
Performance analysis needs three columns: static budget, flexible budget, and actual. Static-to-flex isolates volume; flexible-to-actual isolates price, rate, mix, or spending effects. Labels do not replace causal investigation.
Why this treatment makes sense
A busy month naturally uses more variable inputs. Flexing avoids punishing necessary volume cost or praising lower cost caused by lost sales. It also keeps fixed-cost overspending visible.
A repeatable method
- Define activity driver and relevant range.
- Separate budgeted variable rate and total fixed cost.
- Build static budget at planned activity.
- Build flexible budget at actual activity.
- Compare actual to flexible for revenue/spending performance.
- Compare flexible to static for volume effect.
- Link material variances to quality, time, safety, customer, and capacity data.
Worked example
Ottawa Mobile Repair planned 1,000 service calls at $180 revenue each, $65 variable cost each, and $70,000 fixed cost. Actual: 1,150 calls, revenue $201,250, variable cost $78,200, fixed cost $73,500.
| Item | Static 1,000 | Flexible 1,150 | Actual |
|---|---|---|---|
| Revenue | $180,000 | $207,000 | $201,250 |
| Variable cost | 65,000 | 74,750 | 78,200 |
| Contribution | 115,000 | 132,250 | 123,050 |
| Fixed cost | 70,000 | 70,000 | 73,500 |
| Profit | $45,000 | $62,250 | $49,550 |
Sales-volume effect is $17,250 favourable (flex profit − static). Actual-versus-flex performance is $12,700 unfavourable: revenue $5,750 U, variable spending $3,450 U, fixed spending $3,500 U. Higher volume helped, but pricing/mix and costs weakened.
Journal, ledger, and statement connection
Budgets do not create external journal entries. The performance report maps actual ledger accounts to budget definitions and retains data lineage. Volume, price, and cost variances should reconcile exactly from static profit to actual profit.
Common mistakes
- Flexing fixed cost per unit as if total fixed cost must change.
- Comparing actual directly with static and calling the difference efficiency.
- Marking higher revenue favourable without considering discounts or mix.
- Holding a centre responsible for centrally imposed prices or allocations.
Guided practice
Budget variable cost $9/unit and fixed cost $25,000; actual output 4,000. Flexible cost is $36,000 + $25,000 = $61,000. If actual is $64,500, spending variance is $3,500 U.
Independent practice
Level 1 — flex: Variable cost $14/unit; fixed $32,000; actual volume 3,500. Find flexible total cost.
Level 2 — variance: Flexible revenue $260,000 and actual $253,500; flexible variable cost $112,000 and actual $109,000. Find two variances and net contribution effect.
Level 3 — interpret: Profit beats static budget only because volume rose, while rework and complaints rose. Write a balanced conclusion.
Self-check and solutions
Level 1: $49,000 + $32,000 = $81,000.
Level 2: Revenue $6,500 U; variable cost $3,000 F; net contribution $3,500 U.
Level 3: Volume created favourable activity effect, but deteriorating rework/customer measures may make performance unsustainable. Separate volume from flex variances and investigate process quality before awarding a profit-only bonus.
Retrieval practice
- What comparison isolates volume?
- What comparison isolates spending/revenue performance?
- Does total fixed cost flex within the assumed range?
Answers: flexible versus static; actual versus flexible; normally no.
Exam-style application
Build a three-column performance report, reconcile profit, identify volume and operating drivers, and recommend one financial and one non-financial follow-up measure.
Lesson summary
Flexible budgets put actual activity on a fair comparison base, separating volume from execution and grounding performance conclusions in controllable evidence.