I’m a YouTuber with a channel on longevity science and rejuvenation biotech. I have over 1M views, 120 videos and a little less than 20,000 subscribers. I was recently contacted by a clinic with offices in the US and in Costa Rica, that wants to license some of my videos as educational content. Since I’ve never done anything like this before, I have no idea how much to charge. Any suggestions on how much I should charge to license my videos? On a per-video basis? How much if I have to re-render them to take out my YouTube branding and add their own branding?