Sources & References
At My Panda Tools, we aim to provide useful calculators supported by established formulas, reliable information, and reputable reference materials.
Where research is required, we prioritize authoritative and primary sources whenever practical.
How We Select Sources
Sources may be evaluated based on:
- Authority
- Accuracy
- Relevance
- Publication quality
- Originality
- Currency of information
- Applicability to the calculator
We generally prefer primary sources over secondary summaries when official information is available.
Government Sources
For topics involving taxes, employment, finance, housing, or education, we may consult relevant government agencies and official publications.
Examples may include:
Internal Revenue Service
The IRS provides federal tax information, tax rules, forms, publications, and guidance relevant to certain tax-related calculations.
U.S. Department of Labor
Department of Labor resources may support information involving wages, overtime, working conditions, and employment standards.
Consumer Financial Protection Bureau
CFPB educational resources may help provide context for consumer finance topics such as mortgages, borrowing, and financial products.
Federal Reserve
Federal Reserve publications and data may be used for background information related to interest rates, financial systems, and economic concepts.
U.S. Department of Education
Official education resources may be consulted when relevant to student finance or educational information.
Mathematical Sources
Many calculators rely primarily on established mathematical relationships rather than changing external data.
These may include:
- Percentage formulas
- Interest formulas
- Compound growth formulas
- Area formulas
- Volume formulas
- Unit conversions
- Weighted averages
- Ratios
- Grade calculations
Where a calculation uses a fixed mathematical formula, the underlying equation may be explained on the relevant calculator page.
Financial References
Financial calculators may be researched using information from recognized government, educational, or established financial institutions.
However, My Panda Tools does not represent or act on behalf of any bank, lender, financial institution, or government agency.
Rates, fees, taxes, and lending requirements may change, so users should verify important information directly with the relevant institution.
Salary and Employment References
Salary, hourly pay, overtime, and employment-related calculator content may use information from authoritative employment sources.
Users should be aware that employment regulations can differ by:
- State
- Job type
- Employer
- Industry
- Employment classification
For legal or payroll decisions, users should consult official government guidance or a qualified professional.
Home Improvement References
Home improvement calculations may use established mathematical formulas for:
- Area
- Volume
- Coverage
- Material quantities
- Length
- Perimeter
Actual product coverage and material requirements can vary by manufacturer.
For purchasing decisions, users should also review the technical specifications supplied by the material manufacturer or retailer.
Education References
Our educational calculators are designed using common grading and weighted-average calculation methods.
Because grading policies vary between institutions, users should confirm:
- GPA scale
- Credit weighting
- Course weighting
- Pass requirements
- Final grade policies
with their school, college, or university.
Source Updates
Some information changes over time, particularly:
- Tax rules
- Interest-related information
- Employment standards
- Government guidance
- Education policies
We may periodically review and update relevant content when necessary.
Primary Sources Preferred
Whenever possible, My Panda Tools prefers information from:
- Government websites
- Official agencies
- Educational institutions
- Standards organizations
- Original documentation
- Established mathematical references
Secondary sources may occasionally be used for additional context but should not replace authoritative guidance when primary information is available.
Source Limitations
The inclusion of a source does not mean that the organization endorses My Panda Tools.
External information may also change without notice.
Users should therefore verify time-sensitive or high-impact information directly with the relevant official source before making an important decision.
Editorial Independence
Our calculator methodology and educational content are created to help users understand calculations more easily.
External organizations referenced on the website do not control our calculator outputs or editorial decisions.
Corrections
If we identify a meaningful error in a formula, explanation, or supporting reference, we may correct the information and update the relevant calculator.
Users who notice a potential issue can contact us through our Contact page.
Additional Information
For more information about how calculator results are generated, visit our Calculation Methodology page.
You may also review our:
- Editorial Policy
- Disclaimer
- Privacy Policy
- Terms of Use
for additional information about how My Panda Tools operates.