Contact Decision Tools
Decision Tools is an independent, non-commercial analytical modeling project. We welcome peer review, formula feedback, mathematical bug reports, and suggestions for expanding our decision models.
Methodology & Formula Inquiries
Have a question about our compound amortization formulas, depreciation curve assumptions, or vehicle efficiency models? We believe mathematical models should be open to peer review and scrutiny.
Bug Reports & Calculation Discrepancies
If you encounter an unexpected calculation result, edge-case rounding error, or interface issue on any calculator or mobile device, please let us know with the exact inputs used.
Model Suggestions & New Scenarios
We are continually evaluating new life trade-off scenarios across housing, career, transportation, and personal finance. We welcome suggestions for decision frameworks you would find valuable.
How to Reach the Project Team
To maintain transparency and prevent unverified inquiries, communication for Decision Tools is handled through our open project repository and developer issue tracker.
GitHub Project Repository
Submit bug reports, propose mathematical formula refinements, or join discussions regarding economic benchmark updates on our project repository:
github.com/decision-toolsMethodology & Corrections
Before submitting a correction, you can review our full modeling standards, benchmark references (IRS, FHWA, EIA), and independent editorial philosophy on our About & Methodology Page.
Individual Advisory Disclaimer
Please note: We do not provide individualized financial, legal, tax, or employment counseling. Because every person's financial situation is unique, our team cannot advise you on whether you should buy or rent a specific property, accept a specific job offer, or purchase a specific vehicle. Please consult a licensed professional for personal guidance.