Thanks, it helps partially.
In previous version (AC14) I used Element Info Palette thinking its units are set default. I looked to Working Units settings (AC14) and noticed that it doesn't matter what it's set there, the info units are still the same.
But in AC15 units in Element Info Palette depend of what is set in Working Units, but it seems decimal numbers don't respond.
I'm little confused of this. Not that it was very significant for me but want to be clear of this.