In my Jhora birthchart it is given in the panchang section that the nakshatra is Kritika (73.21 degrees left). As per the books, one nakshatra spants about 12 degrees. Then how how this percentage more than 12 degree. What exactly is getting calculated here.
I am using the new version and in my chart, it reads:
Rohini (80.42% left). My moon is in
first Pada and has only passed
19.58% of Rohini and therefore has
80.42% more of Rohini to pass before moving on to the next nakshatra.
In your chart, it probably means a similar thing about how much more of a nakshatra is left for a planet to pass through before reaching the next one.