Data Source and Methodology
All calculations are strictly based on the standard ROI formula. For more details, refer to financial authorities' guidelines.
The Formula Explained
ROI Formula: \( ROI = \left( \frac{\text{Final Value} - \text{Initial Investment}}{\text{Initial Investment}} \right) \times 100 \)
Glossary of Terms
- Initial Investment: The amount of money invested initially.
- Final Value: The current value of the investment.
- ROI: Return on Investment, a measure of the profitability of an investment.
Frequently Asked Questions (FAQ)
What is ROI?
ROI, or Return on Investment, is a measure used to evaluate the efficiency of an investment or compare the efficiency of several different investments.
How is ROI calculated?
ROI is calculated by dividing the net profit by the initial cost of the investment, then multiplying by 100 to get a percentage.
Why is ROI important?
ROI is important because it provides a metric for comparing the profitability of investments, helping investors make informed decisions.
Can ROI be negative?
Yes, a negative ROI indicates that the investment resulted in a loss.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Formula (extracted text)
ROI Formula: \( ROI = \left( \frac{\text{Final Value} - \text{Initial Investment}}{\text{Initial Investment}} \right) \times 100 \)
Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- SEC — Investor.gov (investing basics) — investor.gov · Accessed 2026-01-19
https://www.investor.gov/ - SEC — Investment adviser information — sec.gov · Accessed 2026-01-19
https://www.sec.gov/investor - IRS — Retirement plans — irs.gov · Accessed 2026-01-19
https://www.irs.gov/retirement-plans
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.