PHP Decode

<?php
/**
 * Copyright  Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
declare(strict_types=1);

namespace Magento\BundleGraphQl\Model\Resolver;

use Magento\Catalog\Model\Product;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\GraphQl\Config\Element\Field;
use Magento\Framework\GraphQl\Query\ResolverInterface;
use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;

class BundlePriceDetails implements ResolverInterface
{
    /**
     * @inheritdoc
     */
    public function resolve(Field $field, $context, ResolveInfo $info, array $value = null, array $args = null)
    {
        if (!isset($value['model'])) {
            throw new LocalizedException(__('"model" value should be specified'));
        }
        /** @var Product $product */
        $product = $value['model'];

        $price = $product->getPrice();
        $finalPrice = $product->getFinalPrice();
        $discountPercentage = ($price) ? (100 - (($finalPrice * 100) / $price)) : 0;
        return [
            'main_price' =>  $price,
            'main_final_price' => $finalPrice,
            'discount_percentage' => $discountPercentage
        ];
    }
}
 ?>