Error displaying discount percentage on porto3.7 shopify theme

Hello, I have the porto 3.7 theme installed in shopify and when I put the prices of my products and put a comparative value, a 0% discount appears on the frontend. you can see it at

Does anyone know how to correct this?
0 porciento

Hi @Defchristian,

Please contact the author of your purchased theme, the theme author will assist you.

How to contact an author to get support or for any technical query: