Fox "News" presents the Obama Change Index:
Heady stuff. And quite the analytic tool. This week his number is 282, which is minus 71 from the week before, a 20.1% decline.
Not a twenty percent decline, but a twenty point one
With delicate measurements like this, you need three digits for accuracy.
Now many of you are laughing, but that's because you fail to see the usefulness of the Obama Change Index. It provides good numbers for you to use when playing the lottery.