Editorial Standards & Fact-Checking Policy
Every number on CalStack is sourced from primary industry data, cross-referenced before publication, and reviewed on a defined schedule. This page explains exactly how that works.
Our Editorial Commitment
CalStack exists because bad benchmarks lead to bad decisions. A restaurant operator using an outdated food cost target, or a contractor bidding with the wrong lumber price, loses real money. Every calculator and guide on this site is held to a single standard: the numbers must be right, and we must be able to prove where they came from.
This page describes the sourcing standards, review process, update cadence, and correction policy that govern all CalStack content.
Primary Sources We Use
We use only primary sources — organisations that collect data directly — or peer-reviewed secondary sources that clearly cite their primary data. We do not use blog posts, press releases, or aggregated "industry average" claims that cannot be traced to an original dataset.
National Restaurant Association (NRA)
Restaurant industry operations, labor cost benchmarks, and profitability data. Annual State of the Restaurant Industry report.
Bureau of Labor Statistics (BLS)
Wage data, employment statistics, and inflation indices. Monthly and annual releases used for labor cost guides.
Hospitality Financial & Technology Professionals (HFTP / USAR)
Uniform System of Accounts for Restaurants (USAR) — the accounting standard for restaurant prime cost and departmental breakdowns.
American Concrete Institute (ACI)
Concrete mix design standards and recommended overage factors. ACI 318 and ACI 305 used in concrete calculator guides.
National Roofing Contractors Association (NRCA)
Roofing material standards, ventilation requirements, and cost data used in roof calculators and guides.
Internal Revenue Service (IRS)
Self-employment tax rates, Schedule SE, and quarterly payment schedules for the freelance tax guides.
The Review Process
Before publication
Before any calculator or guide goes live, it goes through a three-step review:
- Source check: Every benchmark, formula, and rate is traced to its primary source. If a number cannot be sourced, it is not published.
- Cross-reference: Any benchmark used as a primary target (e.g., "a good restaurant food cost is 28–32%") must be confirmed by a minimum of two independent primary sources before it is presented as an industry norm.
- Formula validation: Calculator formulas are tested against worked examples from the source literature and against industry-standard software outputs where available.
Ongoing review
All content is scheduled for review when its primary source releases new data. NRA content is reviewed annually. BLS wage data is reviewed quarterly. ACI and NRCA standards are reviewed when new editions are released.
Who Reviews CalStack Content
Tim Guruge — Founder, CalStack
Tim has 8+ years of background spanning construction estimation, freelance business operations, and restaurant cost management research. He holds a background in applied mathematics and has spent the past three years building financial models for small business operators across the construction, restaurant, and freelance verticals. He personally reviews every calculator formula and benchmark before publication. Read more about Tim →
For restaurant-specific content, benchmark data is reviewed against the current NRA State of the Industry report and cross-referenced against operational data published by industry platforms (Toast, 7shifts, Black Box Intelligence) before the review is signed off.
Update Schedule
Annual — Restaurant benchmarks
Labor cost %, food cost %, and prime cost benchmarks are updated when NRA releases its annual State of the Restaurant Industry report (typically Q1).
Quarterly — Wage and tax data
BLS wage data and IRS self-employment tax rates are reviewed each quarter. Any material changes to the federal self-employment tax rate trigger an immediate update.
On release — Construction standards
ACI, NRCA, and IRC span table references are reviewed when new editions are published. The current editions referenced are ACI 318-19, NRCA 2023, and IRC 2021.
Immediate — Material errors
If a formula or benchmark is found to be materially incorrect, it is corrected within 48 hours of identification, and the page's dateModified is updated.
Corrections Policy
If you find a number, formula, or benchmark on CalStack that you believe is incorrect, please email hello@calstack.pro with the page URL, the specific value you believe is wrong, and your source. We will review the correction within 48 hours. If the correction is valid, we will update the page and acknowledge the correction in the page's revision history.
Affiliate Disclosure
Some pages on CalStack contain affiliate links to tools and services relevant to the calculator topic. These links are clearly marked and do not influence benchmark values, calculator formulas, or editorial conclusions. CalStack's editorial content is produced independently of affiliate relationships. See the Privacy Policy and Terms of Use for full disclosure.