JuanDMeGon/Laravel-from-Scratch

class Product extends Model
{
    //
    public function getTotalAttribute()
    {
        return $this->price * $this->pivot->quantity;
    }
}

// ...

<p class="card-text">
    {{ $product->pivot->quantity }} in your cart
    <strong>(${{ $product->total }})</strong>
</p>

// ...