Tyler-You would need to find someone to hire you and drop you in order for your hire value to drop. That could be difficult since the person dropping you would loose money by doing that. I would suggest you try upgrading instead; get money by doing jobs, farming, etc. and upgrade until you aren't over-priced (if that's the reason why you want to be dropped, that is)
Rockstar_kitty-To get vollied you can ask your pupil or another player to do that. However, after you reach 5088kcs it's best to do jobs, farm, do vollies, etc and upgrade because if you only rely only on vollies to upgrade, you'll become over-priced, making it harder to get hired. Also you have a cap that you can earn from being hired of 1m, which really isn't a lot of money as your stats get bigger and rooms and crews get more expensive.