Build everything to deal with tax rates.

app/Models/Taxrate.php

@@ -4,8 +4,28 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\SoftDeletes;
+use Illuminate\Support\Number;
 
 class Taxrate extends Model
 {
     use SoftDeletes;
+
+    protected $fillable = [
+        'name',
+        'rate',
+        'active',
+    ];
+
+    /**
+     * The attributes that are appended with attribute getters.
+     *
+     * @var string[]
+     */
+    protected $appends = [
+        'rate_percentage',
+    ];
+    public function getRatePercentageAttribute()
+    {
+        return Number::percentage($this->rate, 2, 8, 'de');
+    }
 }