Unit - Rounding increment

[laura_winterr]

Hi

I don't know why it's happening. Is there rule for rounding increment et why Revit don't following a rule?

I need to show the real difference end, in this case, it's not possible =/

Thanks

[ToanDN]

Add more than 4 decimal places to see what the true dims are. Maybe they are 49.27501 andorra 49.26499.

[laura_winterr]

My problem is de second decimal place. 3 and 4 decimal place are the same but when I change for 2, it isn't the same rule.

49.2750 = 49.28 (+0.5)

49.2650=49.26 (-0.5)

[ToanDN]

What I meant to ask was what the true value of them are.  Are they exactly 49.2750 and 49.2650 or 49.27501 and 49.26499.

[MostafaElashmawy]

As @ToanDN said, the left number is actually larger than or equal to 49.2750 

while the right number is smaller than 49.2650. may be = 49.26499 or less.