Xcode - SQLite different rounding between simulator and device

How is possible that executing this query (I replaced the fields with the used numbers) gives 0.80 on the device and 0.81 on the simulator?

"SELECT 1.15 - round((1.15*30.000000/100),2)"

I really can't figure out. Same code, same databases. Seems that the device round 0.805 to 0.80 and the simulator (correctly) to 0.81.