As long as your team's salary is above the salary floor, it is irrelevant.
If the total combined salary of all your players is less than the salary floor for your league, you will pay the salary floor instead of the actual salaries of your players.
For example, if the combined salaries of your players is $34,000, and the salary floor is $25,000, the salary floor doesn't effect you at all. However with those same salaries, if the salary floor is $50,000, you will pay $50,000 in salary each week rather than the $34,000 your players earn.