Why Metrics Matter
What gets measured gets managed. As a founder, you need data to:
- Make informed decisions
- Identify problems early
- Communicate progress to stakeholders
- Optimize your business model
The Metrics That Matter Most
Revenue Metrics
Monthly Recurring Revenue (MRR)
What it is: Predictable monthly revenue from subscriptions Formula: Sum of all monthly subscription revenue Why it matters: Shows business stability and growth
Annual Recurring Revenue (ARR)
What it is: MRR × 12 Why it matters: Standard metric for SaaS valuation
Revenue Growth Rate
What it is: % change in revenue over time Formula: (Current Period - Previous Period) / Previous Period × 100 Why it matters: Shows trajectory and momentum
Customer Metrics
Customer Acquisition Cost (CAC)
What it is: Cost to acquire one new customer Formula: Total Sales & Marketing Spend / New Customers Acquired Why it matters: Must be lower than customer value to be sustainable
Customer Lifetime Value (LTV)
What it is: Total revenue expected from one customer Formula: Average Revenue Per User × Average Customer Lifespan Why it matters: Shows long-term business value
LTV:CAC Ratio
What it is: Return on customer acquisition investment Target: 3:1 or higher (every $1 spent returns $3+) Why it matters: Core profitability indicator
Retention Metrics
Churn Rate
What it is: % of customers who cancel Formula: Customers Lost / Total Customers × 100 Target: Less than 5% monthly for B2C, less than 2% for B2B Why it matters: High churn kills growth
Net Revenue Retention (NRR)
What it is: Revenue kept from existing customers including expansions Formula: (Starting MRR + Expansions - Churned MRR) / Starting MRR × 100 Target: 100%+ (expansions exceed churn) Why it matters: Shows if existing customers grow with you
Growth Metrics
Month-over-Month Growth
What it is: % growth from one month to the next Target: 15-20% MoM for early-stage startups Why it matters: Shows momentum
Viral Coefficient
What it is: New users generated by each existing user Formula: Invites Sent × Conversion Rate Target: Above 1.0 = viral growth Why it matters: Free organic growth
Building Your Metrics Dashboard
Essential Tools
- Google Analytics - Website traffic and behavior
- Mixpanel/Amplitude - Product analytics
- Stripe Dashboard - Revenue metrics
- Spreadsheets - Custom tracking and calculations
Dashboard Best Practices
- Track no more than 10-15 key metrics
- Review weekly (minimum)
- Set targets for each metric
- Track trends, not just snapshots
- Share with your team
Stage-Appropriate Metrics
Pre-Launch
- Waitlist signups
- Email open/click rates
- Social media engagement
Early Stage (0-100 customers)
- Customer acquisition channels
- Activation rate
- User feedback scores
Growth Stage (100-1000 customers)
- CAC and LTV
- Churn rate
- Revenue growth rate
Scale Stage (1000+ customers)
- Unit economics
- Net revenue retention
- Market share
Warning Signs to Watch
| Metric | Red Flag |
|---|---|
| CAC | Rising faster than LTV |
| Churn | Increasing month over month |
| Growth | Slowing without explanation |
| Engagement | Declining active users |
| Revenue | Growing slower than costs |
Action Items
- Identify your 5 most important metrics right now
- Set up tracking for each metric
- Create a simple dashboard (even a spreadsheet)
- Set targets for each metric
- Schedule weekly metric reviews
- Share metrics with your team/advisors
Common Mistakes
- Vanity metrics - Impressive but meaningless (total signups vs. active users)
- Analysis paralysis - Tracking too much, deciding too little
- Ignoring trends - One bad week isn't a crisis, three is
- Not segmenting - Averages hide important differences
- Moving goalposts - Changing targets to look successful