How many points (a month) will my credit score go up by paying credit card bill on time?

I just got approve for my first Credit Card from First premier bank. Even tho it has high interest rate it was the only company that would approve me with a credit score of 520. Currently I have a credit limit of $300. By making my Credit Card payments on time, keeping my credit utilization below 30%, and paying my bill in full, How many points a month (roughly) would you think my credit score will go up a month?