M static/js/bookmakers.js → static/js/bookmakers.js

@@ -40,7 +40,7 @@ bookmaker.id,
                     formatDate(bookmaker.created_at),
                     formatDate(bookmaker.updated_at),
                     bookmaker.name,
-                    bookmaker.default_commission,
+                    formatPercentage(bookmaker.default_commission),
                 ];
 
                 for (const field of fields) {

M static/js/common.js → static/js/common.js

@@ -25,7 +25,13 @@ return (v / 100).toFixed(2);
 }
 
 function formatCash(v) {
-    return formatValue(v) + currency;
+    if (v === 0) return "-";
+    return `${v > 0 ? "+" : ""}${formatValue(v)}${currency}`;
+}
+
+function formatPercentage(v) {
+    if (v === 0) return "-";
+    return formatValue(v) + "%";
 }
 
 function formatDate(dateString) {