    function _handleFees(
        BasicOrder[] calldata orders,
        uint256 feeBp,
        address feeRecipient
    ) private {
        address lastOrderCurrency;
        uint256 fee;
        uint256 ordersLength = orders.length;

        for (uint256 i; i < ordersLength; ) {
            address currency = orders[i].currency;
            uint256 orderFee = (orders[i].price * feeBp) / 10000;
