How much of a cut does eBay take?

I'm curious to know, when it comes to transactions on eBay, just how much of a percentage does the platform take as a fee? Is it a standard rate across all sales, or does it vary depending on the item being sold or the total amount of the sale? Understanding these fees is important for sellers to factor into their pricing strategy and profit margins, so I'd appreciate any insight you can provide on this matter.