Key E-Commerce Financial & Marketing Metrics You Must Track
Scaling a profitable e-commerce brand requires tracking metrics beyond top-line revenue. Understanding your true unit economics, ad spend efficiency, customer lifespan value, and fee deductions is essential for sustainable growth.
Return on Ad Spend (ROAS) calculates ad revenue divided by ad spend. Breakeven ROAS determines the minimum return needed to avoid advertising losses based on your product margin.
Customer Acquisition Cost (CAC) measures total sales and marketing investment divided by new customers acquired. Blended CAC accounts for team salaries and agency fees.
Customer Lifetime Value (LTV) projects gross profit across a customer's total lifespan. A healthy e-commerce business aims for an LTV to CAC ratio of 3:1 or higher.
Conversion Rates, Gateway Fees & Landed Costs
Conversion Rate measures orders divided by total store visitors. Even a small +0.5% boost in conversion rate significantly increases monthly net revenue without extra ad spend.
Payment processors (Stripe, PayPal, Shopify Payments) charge percentage rates plus fixed fees per transaction. Calculating net received cash ensures accurate bookkeeping.
Landed cost incorporates supplier manufacturing costs, air/sea freight, customs duties, tariffs, and FBA handling fees to establish your true baseline item cost.
Frequently Asked Questions (FAQ)
What is a good ROAS for an e-commerce store?
A healthy average ROAS for e-commerce stores typically ranges between 3.0x (300%) and 4.0x (400%), though your breakeven ROAS depends on your product profit margins.
What is a healthy LTV to CAC ratio?
An ideal LTV to CAC ratio for growing e-commerce businesses is 3:1 or higher, meaning a customer's lifetime value is three times the cost of acquiring them.
What is the difference between Paid CAC and Blended CAC?
Paid CAC divides ad spend solely by paid ad conversions, whereas Blended CAC includes marketing team salaries and software agency fees divided across all customers.
How does the Conversion Rate Simulator work?
The simulator takes your store traffic and average order value, then projects exact revenue increases if your conversion rate improves by +0.5% or +1.0%.
Is my store analytics data uploaded to any server?
No. All financial calculations occur 100% locally in your web browser. No store metrics or sales data are ever sent to any remote server.