If you want to know why Newt Gingrich is raising a ruckus about how Florida allocates its delegates, just take a look at the chart below.

Florida, by awarding its 50 delegates on a winner-take-all basis, provided one of the biggest delegate swings you’ll see in the presidential race, outside of Super Tuesday.

Mitt Romney, who was neck and neck in the delegate total before Florida, all of a sudden has a big lead, as the colors in the lower left-hand corner indicate. He won just 21 delegates before Florida, and more than tripled his delegate haul on Tuesday.

Romney is still a long way from getting the 1,144 delegates he needs, but Florida alone got him nearly 1/20th of the way there.

If, for some reason, Florida scrapped winner-take-all, we would basically have a neck-and-neck race again.

(For more detail, click here)

And kudos to the Post’s great graphics team, including Todd Lindeman and Karen Yourish, for putting this together.

For more on delegates and how states award delegates, be sure to check out our delegate tracker.