How to calculate RTP of slot machine?

[Rolandodiez]

I saw a lot of lists of high RTP slots in web. How can I chek is this is true numbers?

 

[Mben]

The RTP is given out by casinos in regards to their games.

Is it a true number? Who knows.
Can you you put it to the test to check if the RTP is true or not? You could, but be ready for a number of variables while doing your test.
Do I play games only because of the RTP? Never.