Hi Boryjustme & welcome to hubpages.lt's Known as your hubscore - generally speaking it reflects your overall activity and contribution to the hubpages community. The exact way it's calculated is not known but it appears to reflect factors such as the hubs you write and how well they do,your particiation in answers and questions and within the forums etc. Your current score will likely climb over the coming weeks and then stabalise somewhat after which your activity and traffic will dictate your exact score. Scores tend to fluctuate quite a bit, even on a daily basis.
You can use the search box to find more info on hubscores or visit the learning center for lots of useful info on all things hubpages