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Formulas, variables & how the total is built
Cost model. The total is the sum of every control at the selected security tier: Total = Physical + Technical + Administrative. Each control uses the project team's own equation. Nothing is scaled, marked up, or reduced beyond what the equations specify.
Variables. SF = square feet (physical controls scale by SF ÷ 25,000); N = number of employees, taken 1:1 with devices (per-user / per-device controls); H = hours spent on compliance tasks per year (hourly administrative controls). Some controls are flat annual amounts independent of size.
Security tier & range. Each control has a Low, Medium, and High figure; the selector applies that tier to every control at once. Uncheck any control to exclude it. The headline is shown as a ±15% range because this is a budgetary estimate, not a quote.
Source: Team-derived equations (Individual Equations / Formulas, Rows 2–31).