Metrica - how to calculate sales after incorrectly configured goals?

Question

Yandex.Metrica

Good afternoon. I searched both in the search here, and at Yandex, I can’t figure it out - please tell me.
The compound goal was configured incorrectly, at the last stage "purchase" the wrong URL was inserted.
Therefore, the achievement of the "purchase" goal = 0. And the achievement of the previous goal, "checkout" - quite a lot, about 100.
How to quickly figure out how many people bought after achieve the previous goal? Do not offer a visor ...
PS There are a lot of purchases and from different places.

Answer 1

It's like when you had to write down something important in a notebook so as not to forget, but you didn't write it down and forgot?

Answer 2

According to the logic (mine, unadapted)
It is necessary to set a condition - that in the same session there was a transition to both the page with my UTM checkout tag and the page with the URL identifying the purchase, something like this?
If this is done through segments, then I can’t figure it out anyway (