Well Adu9 in order to get a huge increase in hub score first you need to begin participating in everything hubpages has to offer, in terms of forums, Q&A, contests, reading hubs entirely & commenting on them, voting or flagging, publishing of high quality hubs and not just high quantity, & communicating with others to eventually earn a fan base which you approve of via your fan mail inbox here.
Each hub you submit is being rated by the overall hubpages community of viewers, and so if it is of low quality will get the lowest ranking, and the hubpages system has a basic guidelines of certain qualifications for a hub to receive placement into a corresponding position. I also think that the search engines will send feedback to the hubpages system as to this hubs overall web reputation as well as web page ranking in terms of SEO or social ranking status.
There's a complex algorithm that is then used by the hubpages control system for statistical data computations, and this will eventually average out all of the hubs you've amounted together.
Your overall hubtivity or hubpages activity will also be ranked amongst that of your peers activeness, and I do believe once all is said and done, a score will be placed next to your profile equating to what you see and know as the hub profile score.
There's many more complex ways this is done as well, so the best thing to do is look at your accolades to see if you've been keeping up with others in the community whove gone before you. These accolades is a measure of how much activity a user has had over the entire course of their hubpages experience from day one.
Meaning the much more active you are in the hubpages community, the higher your ranking will be over time, but your hubs overall ratings is a huge factor in the score itself, and that score can rise or drop tremendously on moments notice. Just keep at it and it will surely rise, as long as you remain focused and edit your hubs for quality and accuracy regularly so that the message its getting across is clear and concise.