How to should sum of price of all orders in customer table

Formulas
1

I have table Order in which I have column Final price which is a formula field.
Now Orders quantity is shown in customer column.
I want another column Customers table to show total sum of all order.totalPrice for that customer.
Rollup field in Customers is not showing any formula field of orders. So right now I am not able to sum up the final price.

2

If you can share a screenshot of the schema or provide a link to a shared base, we can help. Following kinds of aggregations are currently possible.

  • Rollup
  • Column aggregations
  • Column aggregations at GroupBy Level