Use locales for numbers and currency.

.env.example

@@ -6,6 +6,7 @@ APP_TIMEZONE=UTC
 APP_URL=http://localhost
 
 APP_LOCALE=en
+APP_CURRENCY=EUR
 APP_FALLBACK_LOCALE=en
 APP_FAKER_LOCALE=en_US
 

app/Providers/AppServiceProvider.php

@@ -3,6 +3,7 @@
 namespace App\Providers;
 
 use App\View\Composers\TaxDropdown;
+use Illuminate\Support\Number;
 use Illuminate\Support\ServiceProvider;
 use Illuminate\Translation\Translator;
 
@@ -31,5 +32,7 @@ class AppServiceProvider extends ServiceProvider
     public function boot(): void
     {
         \Illuminate\Support\Facades\View::composer('components.tax-dropdown', TaxDropdown::class);
+        Number::useLocale(config('app.locale'));
+        Number::useCurrency(config('app.currency'));
     }
 }

config/app.php

@@ -80,6 +80,8 @@ return [
 
     'locale' => env('APP_LOCALE', 'de'),
 
+    'currency' => env('APP_CURRENCY', 'EUR'),
+
     'fallback_locale' => env('APP_FALLBACK_LOCALE', 'en'),
 
     'faker_locale' => env('APP_FAKER_LOCALE', 'en_US'),