Effy said:
"The price I ask includes Ebay charges and PayPal charges..."
Though many eBay sellers add a charge to cover their fees, it should be integrated into the selling price. They shouldn't quote the price then ask for an additional 4% or whatever to cover their payments to PayPal. This rule doesn't apply to credit card payments though.
Here's what eBay/PayPal say on this.JaX
