Condo association may be assigning monthly fees incorrectly

I am considering running for the board of my Florida condo corporation but am concerned with how the board is charging units monthly fees. The declaration states that 1 bedroom units should pay 3.2% and 2 bedroom units 5.9%. The board has been using a formula that results in 1 bedroom units paying 4.3% and 2 bedroom units 4.7% for the past few years. I suspect this issue will become a problem in the next few months. Can you give me an idea of what to do? Thank you.