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Acquiring Commission 0.5 Percentage Points Lower: What Turnover Covers the Integration

Calculation based on sample data for an online store owner: we account for commission, integration, support, and team time, find the turnover threshold, and test three scenarios.

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If the commission drops from 2.7% to 2.2%, the transition pays for the first-year costs with a paid turnover of approximately 21.52 million RUB per year, or about 1.79 million RUB per month. This is the result of a sample model: 107,600 RUB in fixed costs and a rate difference of 0.5 percentage points. Below is the formula, three scenarios, and the conditions under which the conclusion must be recalculated.

Comparing only percentages is insufficient. A new payment method may involve integration, support, and store team time. In the report, the key figure is not the sum of completed orders but the paid turnover to which the commission is actually applied. Let us calculate under identical conditions.

Boundaries of the Sample Example

The example includes two hypothetical providers. These are not market tariffs, not a commercial offer, and not the result of implementation for a client. The numbers are chosen to demonstrate the calculation mechanism and the decision criterion.

Parameter

Variant A

Variant B

Commission on paid turnover

2.7%

2.2%

One-time integration

0 ₽

60 000 ₽

Annual support

0 ₽

18 000 ₽

Store team time

0 ₽

29 600 ₽

Comparison period

12 months

12 months

Team time in variant B consists of 10 hours for the project manager at an internal rate of 1,200 RUB and 16 hours for the tester at 1,100 RUB. This totals 10 × 1,200 + 16 × 1,100 = 29,600 RUB. The internal rate is a store assumption, not an employee salary.

For both variants, we assume the same commission base and the same billable turnover. Refunds, chargebacks, fiscalization, equipment rental, money withdrawal, and the cost of cash flow gaps are not yet included. If any item differs, it must be added as a separate line.

How to find the turnover threshold

Fixed costs for variant B in the first year equal 60,000 + 18,000 + 29,600 = 107,600 RUB.

Breakdown of first-year fixed costs: 60 thousand for integration, 18 thousand for support, and 29.6 thousand for team time.
Educational model: 60.0 + 18.0 + 29.6 = 107.6 thousand RUB in fixed costs.

The difference in commissions is 2.7% − 2.2% = 0.5 percentage points. In the calculation, this is 0.005 of the turnover. Here is the catch: 0.5 percentage points is not 0.5% of the 2.7% rate. The formula requires the decimal fraction 0.005.

Threshold annual turnover = fixed costs ÷ rate difference.

107 600 ₽ ÷ 0.005 = 21 520 000 ₽ per year.

21 520 000 ₽ ÷ 12 = 1 793 333 ₽ per month, i.e., ≈1.79 million ₽ in average paid turnover.

At this exact threshold, the savings from the lower commission only cover the transition costs. There is no margin for estimation errors or additional work.

The annual cost lines for the two options intersect at an average paid turnover of about 1.79 million ₽ per month.
Educational calculation: Option A — 2.7% of turnover; Option B — 2.2% of turnover plus 107.6 thousand ₽.

Three scenarios for the first year

Average monthly turnover

Annual turnover

Variant A

Variant B

Difference: B minus A

600 000 ₽

7 200 000 ₽

194 400 ₽

266 000 ₽

+71 600 ₽

1 800 000 ₽

21 600 000 ₽

583 200 ₽

582 800 ₽

−400 ₽

2 500 000 ₽

30 000 000 ₽

810 000 ₽

767 600 ₽

−42 400 ₽

At 600 thousand ₽ per month, the commission reduction saves 36 000 ₽ per year, but fixed costs amount to 107 600 ₽. The transition is 71 600 ₽ more expensive. At 1.8 million ₽, the result is nearly equal to the threshold: a difference of only 400 ₽ provides no reasonable margin. At 2.5 million ₽ per month, Option B is cheaper by 42 400 ₽ in the first year.

A minus sign in the last column means Option B is cheaper than A. A plus sign means B is more expensive. This is crucial to clarify: in financial tables, a single sign can trigger a meeting longer than the integration itself.

How much the result depends on the rate difference

Rate difference

Threshold per year

Average monthly threshold

0.3 percentage points

≈35.87 million RUB

≈2.99 million RUB

0.5 percentage points

21.52 million RUB

≈1.79 million RUB

0.8 percentage points

13.45 million RUB

≈1.12 million RUB

The smaller the rate difference, the higher the turnover required. Therefore, it is better to use the effective commission for comparable months rather than the advertising rate: all retained commissions divided by the corresponding paid turnover.

What can change the conclusion

  • Different commission bases: successful payments, payouts, refunds, or specific payment methods may be treated differently.
  • Additional fees: connection, fiscalization, equipment rental, refunds, chargebacks, urgent payouts, or minimum monthly amounts.
  • Payout timing: a lower commission may come with a longer wait for funds, increasing the need for working capital.
  • Share of failed payments: you must compare not only the rate but also the same payment path; otherwise, turnover in the models will differ.
  • Team effort: analytics, development, testing, accounting reconciliation, support, and re-acceptance after updates.
  • Exit costs: disconnection, migration of saved payment methods, parallel operation of two providers, and return to the previous option.

Not every item must be expressed as a single number. If the cost of risk cannot be confirmed, record the stop condition and the responsible person. This is more honest than assigning a convenient 10% to the risk and obtaining a precise answer from an imprecise assumption.

The first and second years follow different models

In the first year, variant B incurs 107,600 RUB in fixed costs. If integration and acceptance testing do not need to be repeated in the second year and only 18,000 RUB for maintenance remains, the threshold drops to 3,600,000 RUB per year, or 300,000 RUB per month.

However, this is a conditional second year. Updating the module, changing the protocol, installing a new cash register, or undergoing recertification may bring back some costs. Therefore, do not automatically carry 300,000 RUB into the forecast: first confirm the scope of work for the next period.

What to check during acceptance testing before disabling the old payment method

The calculation indicates the turnover level at which the transition might make sense. It does not prove that the new payment path works. Before switching, a coordinated set of scenarios and test results are required.

  • Successful payment and the appearance of an order with the correct amount and status.
  • Bank or user rejection without false order confirmation.
  • Repeated notification from the provider without repeated deduction and without repeated status changes.
  • Full and partial refunds with the correct amount in the report.
  • Receipt and fiscalization, if they are part of the selected scope.
  • Reconciliation of the payment registry, orders, refunds, and actual payout.
  • A plan for parallel operation or rollback to the previous provider in case of failure.

The overall acceptance framework for the store helps prevent missing adjacent scenarios. First-year budget calculation should be kept separate: this way, integration does not appear as the project's only expense.

How to make a decision based on your own data

  • Take 3–6 completed comparable months and separate paid turnover from created orders.
  • For each variant, calculate the effective commission on the same basis.
  • Add one-time work, support, mandatory services, and team hours.
  • Divide the fixed transition costs by the difference in rates expressed as a decimal.
  • Check at least three turnover scenarios: below the threshold, near it, and above it.
  • If the result is close to the threshold, do not declare savings. First, agree on a limited pilot and stop criteria.
  • After the pilot, recalculate the model based on actual commissions, successful payments, and labor costs.

One formula is sufficient for the solution, but one number is not. The threshold answers the question of what turnover covers the transition under given conditions. A decision appears only after verifying the conditions themselves: a consistent commission basis, a complete set of costs and work, and a functional payment scenario.

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