Correct "value" in "modifier discountCHI"

[vmish]

I have noticed different value in freeFromUpTo:

• medium - (gasSpent + 14154) / 41947

modifier discountCHI {
    uint256 gasStart = gasleft();
    _;
    uint256 gasSpent = 21000 + gasStart - gasleft() + 16 * msg.data.length;
    chi.freeFromUpTo(msg.sender, (gasSpent + 14154) / 41947);
}

• deployer.eth - (gasSpent + 14154) / 41130

modifier discountCHI {
    uint256 gasStart = gasleft();
    _;
    uint256 gasSpent = 21000 + gasStart - gasleft() + 16 * msg.data.length;
    chi.freeFromUpTo(msg.sender, (gasSpent + 14154) / 41130);
}

Which is the right one?