created simplified mining tax invoice

app/Http/Controllers/Test/TestController.php

@@ -151,7 +151,7 @@ class TestController extends Controller
         
             if($ledgers->count() > 0) {
                 var_dump($ledgers);
-                var_dump($invoiceAmount = round(((float)$ledgers->sum('amount') * (float)$config['mining_tax']), 2));
+                var_dump(round(((float)$ledgers->sum('amount') * (float)$config['mining_tax']), 2));
             }
         }
     }