Question about the FAQ

Hello ! Sorry in advance for my poor english ^^" , currently student who use unreal engine as hobbie, how do the royality 5% work? From what i understood, it is only per title and revenue to share with Epic? Can someone rexplain to me, i already the FAQ, i hear a lot of great thing about Unreal engine 4 and was wondering if the permanent license is only for company (i saw a lot only using subscribing polytical ) ?Thanks again for reading my message =) , i wish in the futur to work in a game industrie.

All the info is there: