Customers: new and returning

How many people bought from you for the first time, and how many came back.

The tiles show New customers (their first order with you), Spent by new customers (all their first orders added up), and Came back (orders from people who bought before).

The table is by week, or by month on a longer time frame, with New customers, What they spent and Came back (other orders) in each one.

We do not save a customer id, so we cannot show what a cohort spends after their first order. We say so on the screen instead of guessing.