What is & how calculate UNREALIZED PNL for ACCOUNT not for individual position

API Spot/Margin API
1

What is the exact meaning and how calculate UNREALIZED PNL showed together BALANCE in ACCOUNT resume.

I mean at UI screen

Not PNL for individual position that I know how calculate . I’m talking about ACCOUNT PNL

Another thing :

Some times the Unrealized PNL of a POSITION is a PROFIT position but when I CLOSE the position it changes for LOSS

And last , If I’ll close a position at MARKET price at the UI , a CONFIRMATION ORDER pop up open and ESTIMATED PNL appears with a very strange numbers !!! The individual PNL is a PROFIT position and this pop up always show a very large LOSS

Very complicated this concepts

Can Help ?
tks

2

Here are a few links with some resources of Binance futures, hope it will be helpful to understand.

3

Thanks Dino

Do you have any links to detail operations with two POSITIONS for the same contract / symbol ?
I mean , when I have one position and reinforce it with another one of big qty and amount and big leverage too.

Like this :

I have a position of 0,1 BTC - leveraged 2 And I want reinforce with more 0,5 BTC with 20 leverage.

Then TOTAL of new position : 0,6 BTC and what happen with leverage of this new and total position ? ( 2 or 20) ?

and HOW calculate PNL for this new position ?
With two ENTRY PRICE , two leverages ?

I’d like to study this situation with more details !

Tks