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THE FEUTEX TOOLKIT

Subscription Cohort Contribution Horizon

Estimate finite-horizon contribution from one customer cohort with constant periodic churn.

Ecommerce workspace● Runs in your browser
01 Your input
02 Your result
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FormulaRemaining customers = v.customers*Math.pow(1-v.churn/100,v.months) ; Cumulative contribution = v.customers*(v.monthly_price-v.monthly_cost)*(1-Math.pow(1-v.churn/100,v.months))/(v.churn/100)-v.customers*v.acquisition
Sources and model references

Worked example

Inputs

Customers
100 people
Monthly price
40 currency
Monthly cost
10 currency
Churn
10 %
Months
12 months
Acquisition
120 currency/customer

Expected results

Remaining customers
28.24295365 people
Cumulative contribution
9527.113906 currency

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter your own assumptions using a consistent currency and period.
  2. Review the scenario outputs and compare alternative inputs.
  3. Check the stated model limits before using the result in an operating plan.

Try this example

{
  "customers": 100,
  "monthly_price": 40,
  "monthly_cost": 10,
  "churn": 10,
  "months": 12,
  "acquisition": 120
}

Accuracy and scope

Customers pay before end-of-month churn. Constant churn and cost, no expansion, discounting or new acquisition during the modeled horizon.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.