Round before reformatting percentage input

This fixes a previous PR that sought to remove decimals
and round percentages to the nearest whole number.
The order of operations was causing 50.55 to become 5055.

This change fixes that bug and handles input such as
50,55
50.55%
50,55%
50%

ynr/apps/utils/widgets.py

@@ -58,7 +58,13 @@ def build_attrs(self, base_attrs, extra_attrs=None):
             {
                 "pattern": r"[0-9\s\.]*",
                 "oninvalid": "this.setCustomValidity('Enter a percentage or a whole number')",
-                "onchange": "this.value = Math.round(this.value.replace(/\D/g, '')).toString()",
+                "onchange": """
+                let value = this.value.replace(",", ".");
+                value = value.replace("%", "");
+                value = value.trim();
+                value = Math.round(parseFloat(value)).toString();
+                this.value = value;
+            """,
             }
         )
         return attrs