Order::getDiscountRateByBasketItem

static function getDiscountRateByBasketItem(array $basketItem) : float
{
	$discountRate = 0;

	if (isset($basketItem['DISCOUNT_RATE']))
	{
		$discountRate = $basketItem['DISCOUNT_RATE'];
	}
	else if ($basketItem['BASE_PRICE'] > 0)
	{
		$discountRate = $basketItem['DISCOUNT_PRICE'] * 100 / $basketItem['BASE_PRICE'];
	}

	return $discountRate;
}