Talk:Olaf/@comment-5989852-20150121114543/@comment-25398475-20150122180648

Your attack damage was rounded up, maybe it was like 153.6 so the calculation would be 250 + (0.4) x (153.6) = 311.44 which is rounded to 311.

Anyways the rounded values are only for description and that displayed damage number. In game it does exact damage (like hit someone 100 times with 5.6 damage it will show each time 6,6,6,6... etc but after 100 hits your target will have 5600 hp missing).