To set up your PayPal Donate button, do the following:
Navigate to the Wix Editor
Click Add/Button/PayPal Buttons on the left side of the screen
Click the PayPal Donate button in the Editor.
Click Add PayPal Info.
Enter your PayPal email.
Enter the organization name.
Add an ID number (optional).
Click the Let visitors set own amount toggle to enable or disable this option:
Enabled: Allows your visitors to set their own donation amount.
Disabled: Requires your visitors to select a fixed donation amount.
Enter the donation amount in the What's the donation amount? field.
Click the What's the currency? drop-down menu and select a currency.
10. Select how PayPal opens:
Current window: Paypal opens in the same window.
New window: PayPal opens in a new window.
11. Click the What language is the button in? drop-down menu and select a language.