Our percentage was 94.3% and my wife and I rode through it for bragging rights. It was mostly just a visible bluish cast to everything and then got significantly darker for maybe a minute. The biggest difference was the temperature drop - about 9º. It took a good hour to return to the temp it was before.
Anyway, I tried to get my wife to stop at our peak and peel her clothes off and dance but she just dropped me instead.