When plugging in the math for the moai_calib-v2.acp file does the formula retain its same format even for the negative numbers?

**Example**

-X is supposed to be 61, my measurement is -60.15

— Is the correct formula -> 61 + (60.15-61)/2 or should it be 61 + (61-60.15)/2

I assume the first is correct as that is original + (measured - original)/2

I only ask since these are negative numbers, should I just treat them as positives in the formula?

Sorry for the confusion, just making sure I have the formula correct

Tim