Can I use my Paypal balance to pay for ebay items?

I sold items on Ebay and have a balance on my Paypal account from the money I received. Now I’ve bought an item and have an invoice on Paypal and am trying to figure out if I can use my existing balance to pay for the invoice? I have $85 earned and want to pay a $25 invoice. I don’t see the option for paying it that way, but I would just assume that I could.