Quick question about TT

Ok, so on my Tactics Trainer home page, there's a place where it says:

Passed: 2518 (63%)

But then when I click "Players" and do a search for "cobra91", I find that my success rate is displayed as only 62%. Is there some sort of reason for this?

I realize this may seem like a very odd and pointless thing to be asking about, but I'd really like some kind of answer. Curiousity, I suppose.

maybe it's not updated?

 I am almost certain this is not the case. The rating and number of attempts displayed on the "Players" list match my home page stats exactly. 

Maybe the programmers made a small mistake. Perhaps the 62% has been truncated and the 63% rounded.

 Took me a second to see what you meant, but now I get it - the actual pass rate is 2518/3997 = 0.62997247935952 or about 62.997% , which obviously rounds to 63%. But if the program simply takes the first two significant figures and deletes the others, it will just show up as 62%.

My guess is that you are right, and that a programming error causes certain numbers to be "truncated" in this way.  Thanks