deal-value-calclisted

# Deal Value Calculator Build a quantified business case for one deal - the arithmetic and the narrative together. The organising rule: "It's your job to build the math equation. It's their job to give you the assumptions." (Armand Farrokh, 30MPC). This skill owns the structure, formulas, and benchmark scaffolding; the buyer owns every company-specific input. The documented failure it exists to prevent: "most business cases created by sellers are absolute BS" (30MPC) - inflated numbers the champion never validated, which burn the champion's internal credibility the moment finance pokes a hole. Second rule: "An ROI model on its own isn't a business case. It's a future maybe, without context. Narratives bring meaning to your numbers." (30MPC). Always deliver both the visible math and the narrative document - never a bare ROI number. The real test of the output: it survives being forwarded to a CFO without the rep in the room. ## Never invent a number - Refuse to fabricate any input. When the user lacks a figure, ask for it, or insert a clearly labelled placeholder they must replace (e.g. `[NEEDED: fully loaded hourly cost - ask the buyer]`) - never a plausible-looking invented value. - Label every input by who supplied it: - **buyer-supplied** - a number the buyer stated or documented (their payroll, invoices, ops reports, public filings). - **benchmark** - an external or market figure the rep brought, with its source named. "Companies like yours typically see 15%" wit