That is not possible with precision mathematics, but that's possible with mTurk. I calculate my rating manually each time it rises by .1 decimal place. Last when I calculated, I had only 99.297 but it showed 99.3 in my dash!!!
Congrats! I'd need 303,941 more HITs approved for mine to display 100%. I doubt if that's ever going to happen.
Could you share your submitted hits / rejected ratings so I can see the ratio of how many submitted you have to have to make up for the rejections to get that 100%. That's pretty interesting!
I have 3804 approved, 2 rejects. (From Taggered... I have no idea why) My approval rating is 99.947 but shows at 99.9, I think I should be up to 100 soon. (I know, my numbers are pretty low for how long I've been turking, it's a casual task for me, I'm not full time)
My number went up to 99.4 yesterday, and as expected, had only 99.352. I think they're rounding off to the third significant figure when the fourth digit hits 5. So Cowfin, you need less than 200 HITs for that 100%. Go for it !!!