How much of a cut does Kickstarter take?

So, I'm curious about how Kickstarter operates when it comes to taking a cut from successful crowdfunding campaigns. I've heard they do take a percentage, but I'm not sure exactly how much it is. Can you give me a breakdown of what percentage Kickstarter takes from successful campaigns, and if there are any other fees or costs associated with using their platform? It's important for me to understand the financial implications before deciding to use Kickstarter for my own project.