30
The way this slider shows percentages
(thelemmy.club)
This is a community for designs specifically crafted to make the experience worse for the user. This can be due to greed, apathy, laziness or just downright scumbaggery.
You are really picking at straws here to justify being mad. Most storefronts, Steam included, take 30%. Humble is also pretty transparent about how the money is divided up. When you attempt to adjust the Humble slider you will notice that part of the bar is grey. This is the fixed minimum cut that Humble has to take for operating expenses.
Edit: typo
I'm not saying that they can't have a profit. After all they need to pay marketing, cc fees, bother with scammers/chargebacks and so on. Doing like before the IGN acquisition where people could put zero was unfair. I am totally fine giving them a fair share.
I'm saying that this slider is designed to be deceiving and pretend their share is minimal and not a third of that.
Not to mention that 30% is the minimum fee.
The default fee if the user doesn't change the slider is this:
And in the slider it doesn't visually appear they take 45% but it looks like a 25% (I'm getting error 500 when uploading a screenshot)