FREE COMMERCIAL CLEANING TOOL

Commercial Cleaning Margin Drift Calculator

Compare your original labor estimate with actual contract performance and see how the difference affected your profit margin.

Free No sign-up Uses your own business numbers

CONTRACT

Contract Economics

Enter the recurring monthly revenue and the loaded labor cost you use for this account.

/ month

The recurring monthly amount billed for this account.

/ hour

Use the labor cost per paid hour you want reflected in this analysis.

ESTIMATE VS ACTUAL

Compare the Plan With Reality

Enter the labor and other monthly costs used in the estimate, then what actually happened.

Estimated

hrs / month

Recurring costs outside labor, such as supplies, equipment, travel, or account overhead.

Actual

hrs / month

Leave blank to assume other monthly costs stayed the same as estimated.

Your numbers stay in your browser. No account or email required.

MARGIN DRIFT BASICS

What Is Margin Drift in a Commercial Cleaning Contract?

Margin drift is the difference between the profit margin expected when a cleaning account was estimated and the margin produced by the actual performance of that account.

If actual labor hours or other account costs come in above the original estimate while contract revenue stays the same, the actual profit margin can fall below the estimated margin. That is margin erosion.

Margin drift can also be positive. If actual costs come in below the estimate, the account can produce a higher margin than originally expected.

ESTIMATE VS. ACTUAL

Why Estimate vs. Actual Performance Matters

A commercial cleaning bid is built using assumptions about the account. Labor hours and costs are estimated before the work is performed.

Once the account is operating, actual labor hours and actual costs show what really happened. Comparing those numbers with the estimate helps reveal whether the original assumptions held up in practice.

The question is not only whether the account is profitable. It is also whether actual performance stayed aligned with the numbers used when the account was priced.

LABOR VARIANCE

How Labor Hour Variance Changes Profitability

Labor Hour Variance Actual Labor Hours − Estimated Labor Hours

Illustrative example

Estimated labor hours 119 hrs
Actual labor hours 132 hrs
Labor hour variance +13 hrs
At $23 loaded labor cost / hour +$299 labor cost

Example only. Use your own labor-hour and labor-cost assumptions when evaluating an account.

MARGIN CALCULATION

How Margin Drift Is Calculated

Estimated Margin Estimated Profit ÷ Revenue
Actual Margin Actual Profit ÷ Revenue
Margin Drift Actual Margin − Estimated Margin

If an account moves from a 24.4% estimated margin to an 18.3% actual margin, the margin drift is approximately -6.1 percentage points.

Percentage points describe the difference between two margin percentages. They are not the same as calculating a percentage change between the two values.

WHAT CAN CHANGE

Labor Variance Is Not the Only Cause of Margin Drift

Labor Hours

The account may take more or fewer paid labor hours than the original estimate assumed.

Labor Cost

The labor-cost assumption used in the estimate can affect how additional or reduced hours change profitability.

Other Account Costs

Recurring non-labor account costs can also differ from the values used in the original estimate.

MARGIN EROSION

What Margin Erosion Can Tell You

Negative margin drift means the actual margin is below the margin originally estimated for the account.

That difference can be a signal to review the assumptions behind the estimate, including labor hours, loaded labor cost, and other recurring account costs.

If you need to calculate the labor cost per paid hour you want to use in an estimate, start with the Commercial Cleaning Labor Cost Calculator .

FROM ESTIMATE TO REALITY

A Simple Commercial Cleaning Pricing Workflow

FAQ

Commercial Cleaning Margin Drift Calculator FAQ

What is margin drift?

Margin drift is the difference between the profit margin expected in an estimate and the margin produced by actual account performance.

Is margin drift the same as profit margin?

No. Profit margin describes profit as a share of revenue. Margin drift describes the difference between an estimated margin and an actual margin.

What can cause margin erosion in a cleaning contract?

Margin erosion can result when actual costs are higher than the assumptions used in the estimate. Labor-hour variance, labor cost, and other account costs can all contribute.

Should I compare estimated and actual labor hours?

Comparing estimated and actual labor hours can show whether the workload performed matched the labor assumption used when the account was priced.

Can margin drift be positive?

Yes. If actual performance produces a higher margin than the original estimate, margin drift is positive.

Does this calculator track contracts over time?

No. This free calculator analyzes one estimate-versus-actual scenario at a time. ContractGauge is designed for the broader workflow of bidding, contracts, actual costs, and ongoing profitability.