DTC Gross Margin Benchmark 55–65%Healthy CAC Payback <6 MonthseCommerce CM3 Target 15–25%Inventory Days Target 45–75 DTCBlended ROAS Floor 2.5–3.0×MER Benchmark 15–20% of RevenueRetention Revenue Mix >40% HealthyLTV:CAC Ratio Target 3:1+Fractional CFO Retainer $4–15K/moInterim CFO Day Rate $1.2–2.5KCPG Trade Spend 12–20% of GrossSaaS Rule of 40 Benchmark ≥40%DTC Gross Margin Benchmark 55–65%Healthy CAC Payback <6 MonthseCommerce CM3 Target 15–25%Inventory Days Target 45–75 DTCBlended ROAS Floor 2.5–3.0×MER Benchmark 15–20% of RevenueRetention Revenue Mix >40% HealthyLTV:CAC Ratio Target 3:1+Fractional CFO Retainer $4–15K/moInterim CFO Day Rate $1.2–2.5KCPG Trade Spend 12–20% of GrossSaaS Rule of 40 Benchmark ≥40%