How much is the PayPal fee per $100?

I'm curious to know, could you please clarify the PayPal fee structure for a transaction of $100? Is there a standard percentage or flat fee that applies? Understanding the cost breakdown is crucial for budgeting and financial planning. Additionally, does this fee vary depending on factors such as the account type, location, or payment method? I'm eager to gain a clear understanding of the overall cost associated with using PayPal for a $100 transaction.