revenue sharing

Hi everyone, I've been quite active on my YouTube channel this last year where I make guitar lessons videos and I encounter on most of my videos the Copyright claiming that ends up with a revenue sharing. Does someone know the percentage that they take off the revenue made by one video ? I...

Posting for a friend. I read the help section on youtube for Revenue Sharing with cover songs but I'm a little confused because the help article says that you can't share in revenue with cover songs for live concert performances. Yet my friend is the musician in the concert. It's her cover...