How much is PayPal fee for $100 USD?

I'm curious to know the exact PayPal fee structure for a transaction of $100 USD. Could you provide me with a breakdown of the fees that PayPal charges for such an amount? It's important for me to understand the total cost of using PayPal for this specific transaction so I can make an informed decision. Also, would the fee vary depending on the type of transaction, such as a domestic or international payment? Knowing the specifics will help me plan my finances accordingly.