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THE FEUTEX TOOLKIT

Scope Change Cost and Duration

Budget a change request including work, testing, management overhead and team throughput.

Projects workspace● Runs in your browser
01 Your input
02 Your result
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FormulaTotal hours = v.build_hours*(1+v.test_share/100)*(1+v.management_share/100) ; Change budget = v.build_hours*(1+v.test_share/100)*(1+v.management_share/100)*v.rate ; Duration weeks = v.build_hours*(1+v.test_share/100)*(1+v.management_share/100)/v.weekly_capacity
Sources and model references

Worked example

Inputs

Build hours
120 hours
Test share
25 %
Management share
10 %
Rate
70 currency/hour
Weekly capacity
100 hours/week

Expected results

Total hours
165 hours
Change budget
11550 currency
Duration weeks
1.65 weeks

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

{
  "build_hours": 120,
  "test_share": 25,
  "management_share": 10,
  "rate": 70,
  "weekly_capacity": 100
}

Accuracy and scope

Management overhead applies to build plus test work. Assumes sequential aggregate capacity; dependencies and parallel execution are not modeled.

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.