Do "or" statements always work?

[mancunian]

I have been coding for many years with QM but I am baffled why the "or" statement (just below the ??????) in the code below does not work when the variable "multiple=5.15" in the code below (excuse the rough coding) Note the "or" statement does work when "totalmoverequired>dailymove"

Note as multiple starts at 0.95 and then increases by 0.35 one each loop it does eventually = 5.15 but the "or" statement does not recognise this.

I am missing something obvious - I have stared at this for days and would appreciate a fresh pair of eyes. Thank you