{ "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json", "elmType": "div",

"txtContent": "=floor(@currentField) + '%'"

}

{
   "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
   "elmType": "div",
  
  "txtContent": "=floor(@currentField) + '%'"
   
}