Hi, Jan!
Thank you for response.
I have no problem with calculating the fuel for the flight. If you look at my screenshot, i was confused by the fact that the fuel remainder at the point "Menbo" is 10, and in next point "Noret" the scanned fuel remainder is 22.7 although it should be less than 10.
I'm sorry, I may not be able to express my thoughts clearly, since I am not an English speaking man.