Behavioral Metrics

1. Click-through rate (CTR) = (Number of clicks / Number of impressions) × 100%
2. Time on task = Time Task Completed - Time Task Started
3. Task success rate = Number of Successful Completions / Total Number of Attempts
4. Bounce rate = (Number of Single-page Sessions / Total Sessions) × 100%
5. Conversion rate = (Number of Conversions Total Number of Users) × 100%
6. Error rate = Number of Errors / Total Number of Actions
7. Abandonment rate = (Number of Abandoned Processes / Number of Started Processes) × 100%

Engagement Metrics

1. Session duration Average Session Duration = Total Time Spent / Number of Sessions
2. Number of sessions per user = Total Number of Sessions / Total Number of Unique Users
3. Retention rate = ((E-N)/S) x 100 E = number of customers at the end of a period N = number of new customers acquired during the period S = number of customers at the start of the period
4. Churn rate = (Customers lost during a given period / Customers at the beginning of that period) × 100
5. User lifetime value (LTV) LTV = (Average Value of a Purchase) x (Number of Purchases per Year) × (Average Customer Lifespan)

Outcome Metrics

1. Revenue = Total number of products sold * The price per product
2. Conversion rate = (Number of Conversions / Total Number of Visitors) × 100%