Scenario analysis workbench

Scenario analysis workbench is a free browser tool that produces traceable formula results, complete task output tables and source-linked unknowns from observed source records and approved method rules. Calculations use supplied observations and explicitly approved methods.

Free. No account or payment needed.

Your browser is preparing this tool.

What does the scenario analysis workbench produce?

Compare explicit driver changes with a reproducible baseline and scenario result.

Use the exact local files and task-specific inputs listed below. Preparation and review stay in this browser. Inspect all findings before preparing the finalized pack.

What do you need before you start?

  • Define the authorized source population and your review rules.
  • Keep the unchanged original files and record the snapshot and exclusions.
  • Review missing and invalid inputs before preparing the finalized pack.

What information do you enter?

Select the actual local sources and freeze the task-specific inputs below. Keep source files and complete findings private.

  • Observed source records. Exact headings scenario_id, driver_id, baseline, delta_percent, unit, source_ref.
  • Approved method rules. Exact headings driver_id, coefficient, input_unit, output_unit, model_version, approval_ref.
  • Analysis reference. Customer-controlled review reference.
  • Analysis owner. Responsible reviewer of method and evidence.
  • Observation date. Real YYYY-MM-DD date. Future source observations are unresolved.
  • Population and method scope. Name source population, selected period, approved model and known omissions.
  • Population declaration. Select the explicit approved working method.
Field guidance. The fictional example is invented. Replace it with your own reviewed facts.
FieldWhat to enterFictional example
Analysis referenceRequiredCustomer-controlled review reference.
Analysis ownerRequiredResponsible reviewer of method and evidence.
Observation dateRequiredReal YYYY-MM-DD date. Future source observations are unresolved.2026-10-09
Population and method scopeRequiredName source population, selected period, approved model and known omissions.
Population declarationRequiredSelect the explicit approved working method.Choose from Selected records only, Your declared complete sources.Selected records only

What you can download

Every result must identify its supplied facts, assumptions and unresolved items.

Free resultIncluded downloads

Enter your information, inspect the on-screen result and keep a browser backup.

Editing and direct copies of your entered information stay free.

  • Traceable formula results, complete task output tables and source-linked unknowns. Free full result JSON, findings CSV and working datasets.
  • Nine files. Formal PDF and DOCX, complete Excel source populations and calculations, findings CSV, frozen inputs/results JSON, delivered-file hashes, instructions and two exact originals.
  • Validated browser backup ZIP, local reload, exact-byte restore and separate preserved earlier forms, calculator drafts, source files and historical purchases.

These supported outputs are free. No checkout is required.

Fictional review report (PDF). Editable review (DOCX). Complete fictional pack (ZIP). Requires tailoring and responsible review. Samples use the finalized renderer.

How does the scenario analysis workbench work?

  1. 1
    Select the actual sources

    Observed source records. Exact headings scenario_id, driver_id, baseline, delta_percent, unit, source_ref.

  2. 2
    Freeze the review rules

    For each scenario and approved driver, calculate baseline contribution as baseline times coefficient. Scenario contribution is baseline times (1 plus delta_percent divided by 100) times coefficient. Sum contributions only within the approved output unit. Each scenario requires every approved driver exactly once. Preserve coefficients, baseline, changes and assumptions.

  3. 3
    Inspect complete findings

    Review all source-linked results and unresolved items. Free JSON and CSV preserve complete results.

  4. 4
    Keep recoverable work

    Exact source files and input strings save in this browser. Backups verify tool identity, input schema, hashes and parsed bytes before replacing current work. Prior checkpoints and historical purchases stay separate.

  5. 5
    Prepare the finalized pack

    Prepare nine complete files, including both exact originals, then download them free. Review the fictional sample below.

Common questions

What information does the scenario analysis workbench need?

Enter observed source records. Exact headings scenario_id, driver_id, baseline, delta_percent, unit, source_ref; approved method rules. Exact headings driver_id, coefficient, input_unit, output_unit, model_version, approval_ref; analysis reference. Customer-controlled review reference; analysis owner. Responsible reviewer of method and evidence; observation date. Real YYYY-MM-DD date. Future source observations are unresolved. Define the authorized source population and your review rules.

What does the scenario analysis workbench produce?

Traceable formula results, complete task output tables and source-linked unknowns. Free full result JSON, findings CSV and working datasets. Nine files. Formal PDF and DOCX, complete Excel source populations and calculations, findings CSV, frozen inputs/results JSON, delivered-file hashes, instructions and two exact originals. Validated browser backup ZIP, local reload, exact-byte restore and separate preserved earlier forms, calculator drafts, source files and historical purchases. Review unresolved findings and limitations before use.

Who makes the final decision?

A responsible person reviews the result. Calculations use supplied observations and explicitly approved methods. Original files and prior work remain in this browser. Results do not establish source authenticity, population completeness, causation, regulatory compliance or approval to make a customer, supplier, lending or model decision.

Is this tool free?

Yes. The on-screen result and listed downloads are free. No checkout is required. Keep local backups and review the stated method and limits.

Can I use the scenario analysis workbench for this task?

Support transparent assumptions and structured analysis. Calculations use supplied observations and explicitly approved methods. Original files and prior work remain in this browser. Results do not establish source authenticity, population completeness, causation, regulatory compliance or approval to make a customer, supplier, lending or model decision.

What still needs review?

Calculations use supplied observations and explicitly approved methods. Original files and prior work remain in this browser. Results do not establish source authenticity, population completeness, causation, regulatory compliance or approval to make a customer, supplier, lending or model decision.

Linear driver contributions only. Coefficients explicitly map input units to an output unit. No causal, forecasting or nonlinear model claim.

Source limits are 10 MB, 5000 rows, 50 fields, 100000 cells and 5000000 parsed characters per file. Plain decimal inputs support 12 whole digits and 6 fractional digits.

Calculations use exact rational arithmetic and round displayed values half away from zero to six fractional places unless an explicit payment rounding rule applies. Decisions compare unrounded values.

Complete results support at most 20000 findings and 15000000 characters. Formal reports show the first 25 rows per calculation output, 1000 characters per calculation preview, and the first 100 named checks with 400 characters per check field. Excel and JSON retain all values.