What problem does it solve? Sales proposals often contain numbers without formulas, sources, or hypotheses, making them impossible to defend in negotiation. This Skill standardizes the economics behind every figure in a proposal so each number carries a formula, a source or explicit placeholder, and a status. ## Core Features & Use Cases - Pricing and discount math: Computes table-equivalent value, effective discount in percent and currency, cost of the discount, and breakeven months against the minimum guaranteed contract term. - Client payback models: Builds the two classic payback accounts (recovered revenue and saved hours) with explicit placeholders when client data is missing, plus a sensitivity ruler showing how much improvement justifies the price. - Barter, equity ladder, and valuation: Calculates barter equilibrium ratios, implied post-money valuation per participation tier, and EBITDA-multiple valuation ranges with source, band, and sensitivity analysis. - Use Case: Before sending a retainer proposal, use this Skill to compute the effective discount, the breakeven month versus the notice period, and the client payback account, then produce a numbers sheet where every figure has an ID, formula, and hypothesis for QA cross-checking. ## Quick Start Use the sales-pricing-payback skill to calculate the effective discount, breakeven, and client payback for my proposal with a monthly fee of R$ 15,000 and a table-equivalent value of R$ 22,000.
