Simple voice over to read through text ( percentage pay only )

Hello
I'm currently working on a new YouTube channel where I create script and edit the videos on my own but I don't have a native English accent.
The voice over I require isn't something too much, just as simple as you reading through the text as long as you have a native accent
The only way I can pay you is through a percentage from the possible YouTube revenue.
If you understand the terms and are willing to this for long with me I'll be glad to have you