erpsaas/app/Events/CurrencyRateChanged.php

<?php

namespace App\Events;

use App\Models\Setting\Currency;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Queue\SerializesModels;

class CurrencyRateChanged
{
    use Dispatchable;
    use InteractsWithSockets;
    use SerializesModels;

    public function __construct(
        public Currency $currency,
        public float $oldRate,
        public float $newRate
    ) {
    }
}