[wp_paypal_checkout description="test checkout product" amount="3.99"]
[wp_paypal_checkout description="test checkout product" amount="3.99" tax_rate="2.9"]
[wp_paypal button="buynow" name="My product" amount="4.99" ]
[wp_paypal button="buynow" name="My product" amount="4.99" tax_rate="2.9" button_image="http://thinking-heart.com/wp-content/uploads/2024/01/stern_pp.png"]