Evgeny Epifanov

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public function getCost(msOrderInterface $order, msDelivery $delivery, $cost = 0) {
        $cart = $this->ms2->cart->status();
        if ($cart['total_cost']<5000) {
            $add_price = $delivery->get('price');
            if (preg_match('/%$/', $add_price)) {
                $add_price = str_replace('%', '', $add_price);
                $add_price = $cost / 100 * $add_price;
            }
            $cost += $add_price;
        }
        return $cost;
    }