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So, alot of people "know" that a real of 5.00 sometimes converted to integer would give a integer of 4.. (and the same for other "whole" reals aswell)
 Now, I *could* buy the ordinary explanation (the reals sometimes are 4.9999 or 5.0001 instead of 5), except for one thing; I had a number that in ordinary cases was 1.00 (or 100%) that affected another number. However, when 0.05 (5%) was added and removed the affected number decreases as well as the integer-conversion of the modifier. I needed to doublecheck that the decrease was a 1-time thing only (thereby fixing it by increasing the 1.00 to 1.0001 or something). But my tests indicate that it was a lowering of the amount every time.. Here is a small report, if any1 has more information of the subject, please feel free to add.
Theory: A addition and subtraktion with the same real with digits of a real variable seems to actually lower the variable when it should have been returned to the same. 
 Test1: To quickly see if it works like that, I created a simple loop running through 300 times that adds and removes the same amount from a global real variable. A bjdebugmsg with the real*10000 (to see otherwise "hidden" digits) is called before and after the loop. Code:
To test if this is the way in non-loops, I tried the samething without loops, and it still decreases every time it is tested, but with lower speed (the loop generated about a minus of 3.5*10^-4 in the loop, the unlooped version had a to low number to get any good approx-number at all, but it seemed to be a little below 1.5*10^-5.
 A testmap is attached. (: