Add Text After Price

I’m sure this has been asked many times, but I want to add “per box” or “per carton” after the price that appears when the customer has chosen the attributes they want.

So I have a variable product where say the customer may choose 11cm diameter in red and the price appears ￡10.40. I want it to say ￡10.40 per box.

I can’t believe its not possible to do this already in standard woocommerce, but I can’t find it. If not then I further can’t believe that someone hasn’t written a plug-in to sort it.

Anyone point me in the right direction?

Jess

https://www.ads-software.com/extend/plugins/woocommerce/