public function getSecondPrice(?string $startingPrice): ?string 	{ 		if (!$startingPrice) { 			return null; 		}  		return number_format((float) (setting('main_currency') == Setting::CURRENCY_KUNA 			? MathMoneyOperations::calculate($startingPrice, setting('currency_exchange_rate') ?? '7.53450', '/') 			: MathMoneyOperations::calculate($startingPrice, setting('currency_exchange_rate') ?? '7.53450', '*')), 2); 	}