How to set up the Abandoned Cart goal in Yandex Metrica or Google Analytics?

Question

Marketing

Friends have already broken their heads how to 90% fine-tune the goal and calculate the number of abandoned carts.
What is the difficulty there are 2 goals
Shopping cart
www.site.ru/checkout
Checkout
NEW_ORDER_DONE
In order to make a purchase (NEW_ORDER_DONE ) a person needs to visit the shopping cart ( www.site.ru/checkout ) it's all logical and elementary.
How to get the figure of the number of people who entered the basket but did not make a purchase from 2 types of data.
If you just subtract in your mind (cart - completed purchases)
Then the question arises whether the basket will count, returns to the basket of a person who has already bought the goods, or repeated visits (2-3 times a day for a person who has not decided to buy), if so, then an oral count without taking into account individual data is meaningless.
Is it possible to set up a composite event in the metrics so that it itself excludes (cart visits) - (completed purchases) from the figure.
If you have guesses or guesses and solutions! please take the time to post a detailed answer.

Judging by the picture 58 (visits to the basket where you need to fill in your contact details) -27 (number of orders placed) = 31 (if you subtract verbally, then we did not receive more than half of the orders.
58-27=31

Answer 1

You most likely need to look in terms of users and not sessions.
Add a segment to Google Analytics. Call it "Tourists". Go to the conditions,
Cart - contains - /checkout
- and -
Transactions - per user = 0
Instead of transactions, you can specify the achievement of the goal "Place an order".