Variance Analysis: Budget vs Actual

By Ryan O'Connell, CFA, FRM Published October 15, 2026

Variance analysis helps explain why a company’s actual results differ from its budget.
If a business planned to earn $100,000 this month but earned $48,000, the $52,000 shortfall
is the starting point. Managers need to know how much came from fewer sales, lower prices,
or higher costs before deciding what to change.

While financial ratio analysis helps compare
performance across periods and companies, budget variance analysis compares results with
a specific plan. A flexible budget makes that comparison more useful when sales volume changes.

What Is Variance Analysis?

Variance analysis is the process of measuring differences between actual
results and a budget or standard, then investigating what explains them. Businesses can analyze
revenue, expenses, sales volume, and profit. A variance is the measured difference; identifying
its underlying cause requires additional evidence.^[1]

The following example separates four effects: sales volume, selling price,
variable spending, and fixed spending. The video provides a visual walkthrough;
the calculations below explain the complete example independently.

Static Budget vs. Flexible Budget

A static budget is the original plan at one activity level.
A flexible budget recalculates budgeted results for a different activity level.
For a performance comparison, use actual sales volume while retaining budgeted selling price,
variable cost per order, and the fixed-cost allowance appropriate to that volume.^[2]

You may also see the actual-activity version called a flexed budget.
ACCA distinguishes it from the flexible schedule prepared across possible activity levels.
Either terminology serves the same question here: what profit would the original assumptions
produce at the actual number of orders?^[3]
This comparison preserves the original plan; it does not replace it with a new forecast.

The Variance Analysis Formula and Signs

This article uses actual minus budget for each line-item variance.
Always identify whether the comparator is the static or flexible budget.

In the profit bridge, every effect is expressed as a change in profit:
positive increases profit and negative reduces it. An unfavorable cost variance therefore
appears with the opposite sign in the bridge.

The operating model uses fixed and variable costs.
Contribution margin is selling price less variable cost, leaving an amount to cover fixed
costs and then profit.^[4]

Budget vs. Actual Example: Meal-Kit Orders

Subtracting variable costs from revenue gives total contribution margin: $200,000 planned,
$180,000 flexible, and $153,000 actual. This management-accounting measure differs from
the gross, operating, and net profit margins used in financial-statement analysis.

The Four Effects on Operating Profit

1. Sales-Volume Variance: −$20,000

First move from the original 10,000 orders to the actual 9,000, keeping budgeted prices
and costs. Each lost order removes the budget contribution margin of $50 − $30 = $20.

Using the full $50 selling price would overstate the profit loss: each missing sale also
avoids $30 of variable cost. The $20,000 unfavorable volume effect takes planned profit
from $100,000 to the $80,000 flexible budget.

2. Selling-Price Effect: −$18,000

Actual price was $48 instead of $50. Apply the $2 reduction to the 9,000 orders
actually sold, since those are the orders affected by the actual price.

3. Variable-Spending Effect: −$9,000

At 9,000 orders, budget variable spending is 9,000 × $30 = $270,000.
Actual variable costs of $279,000 exceed that allowance by $279,000 − $270,000 = $9,000.
This positive cost variance reduces profit:

The aggregate $1 increase per order could involve supplier prices, ingredient usage,
waste, or overtime. It does not by itself identify an input-price or efficiency variance.^[1]

4. Fixed-Spending Effect: −$5,000

Fixed costs were $105,000 against the $100,000 budget. Fixed means insensitive to volume
within the assumed range; it does not guarantee that actual spending matches the plan.

The Complete $52,000 Profit Bridge

$100,000 − $20,000 − $18,000 − $9,000 − $5,000 = $48,000.
The effects total −$52,000, matching $48,000 − $100,000. Volume explains $20,000
of the miss; price and spending explain the remaining $18,000 + $9,000 + $5,000 = $32,000.
That $32,000 is the unfavorable difference between actual and flexible-budget profit.

How to Analyze Budget Variances

Turn the bridge into a short investigation and action plan:

1. Confirm comparable inputs. Reconcile the actual results and check
   that the budget uses the same period, product definition, and accounting classifications.
2. Separate activity from rates and spending. Build the actual-volume
   budget first, then reconcile every profit effect. An unexplained remainder signals that
   the model or data needs attention.
3. Trace important differences to evidence. Compare order records,
   discounts, supplier invoices, ingredient usage, waste reports, staffing hours, and fixed-cost invoices.
   Prioritize size, recurrence, business impact, and what management can influence.
4. Choose and track a response. Assign an owner and next step, such as
   reviewing discounts or testing a waste-reduction change. Update future forecasts when evidence
   supports it, while preserving the original budget for the performance comparison.

A lower selling price might retain customers or reflect a promotion that changed order volume.
Before reversing it, investigate customer behavior and price elasticity of demand.
The bridge measures a price effect at actual orders; it cannot tell you how many orders a different
price would have generated.

Common Mistakes in Variance Analysis

• Calling lower total costs an efficiency gain. Here, variable spending
  was $300,000 − $279,000 = $21,000 below the static plan, yet $9,000 above the
  allowance for actual orders.
• Using revenue instead of contribution for the profit-volume effect.
  Include the variable costs avoided when orders fall.
• Applying price changes to budgeted orders. This bridge uses actual
  orders for price and variable-cost changes, keeping the effects consistent without double counting.
• Treating a sign as a verdict. A positive cost variance is unfavorable
  under actual minus budget, while a positive profit variance is favorable.
• Assigning blame from a total. Confirm causes and decision authority
  before attributing the result to a person or department.

Limitations of Variance Analysis

The simple model assumes one product, no inventory change, constant budget unit economics,
and fixed costs within the relevant range. Multiple products may require sales-mix analysis;
inventory movements may separate production costs from costs recognized on sales. Mixed or
stepped costs need a suitable activity model. Outdated assumptions can also make the benchmark
less useful.^[3]
[4]

Finally, operating profit does not establish cash generation. Collections, supplier payments,
and inventory timing require separate analysis.^[5]
Use the statement of cash flows and
working capital management alongside the profit bridge.

Sources

Accounting sources consulted October 15, 2026. All meal-kit figures are hypothetical.

1. OpenStax, Explain How and Why a Standard Cost Is Developed, especially Fundamentals of Standard Costs and Ethical Variance Analysis.
2. OpenStax, Prepare Flexible Budgets, especially Static versus Flexible Budgets.
3. ACCA, All about budgeting – part 1, Flexible budgeting and Flexible vs flexed budget.
4. OpenStax, Contribution Margin, relevant range, Unit Contribution Margin, and Total Contribution Margin.
5. OpenStax, Prepare Financial Budgets, Cash Budget.