Purchase Funnel Conversion

Count the distinct users reaching each stage (view, cart, purchase) and the percentage relative to the view stage, rounded to two decimals. Order by stage in funnel order.

Table schema

Events(user_id INT, event VARCHAR(10))

Sample data

user_id | event
1 | view
1 | cart
1 | purchase
2 | view
2 | cart
3 | view