hasNetPrices example

        $creditItemsCalculatedPrice = $creditItems->getPrices()->sum();
        $totalPrice = $creditItemsCalculatedPrice->getTotalPrice();
        $taxAmount = $creditItemsCalculatedPrice->getCalculatedTaxes()->getAmount();
        $taxes = $creditItemsCalculatedPrice->getCalculatedTaxes();

        foreach ($taxes as $tax) {
            $tax->setTax($tax->getTax() !== 0.0 ? -$tax->getTax() : 0.0);
        }

        if ($order->getPrice()->hasNetPrices()) {
            $price = new CartPrice(
                -$totalPrice,
                -($totalPrice + $taxAmount),
                -$order->getPositionPrice(),
                $taxes,
                $creditItemsCalculatedPrice->getTaxRules(),
                $order->getTaxStatus()
            );
        } else {
            $price = new CartPrice(
                -($totalPrice - $taxAmount),
                -