Theres no flooring happening on any step atm because we simply don't have that much info on if it is and if so at which step(s).
We also don't know if the gear is is straight % (base * 1.X%) or if its more like Haste/DT/DA etc. and a /1024 number. The calc is setup as if it was a straight % though.
Last we're not even sure if Cursna gear and Cursna Recieved gear are additive or multiplicative. Calc shows both results.