Which Regions Swung the Most?

After examining the data from Dave Leip's Atlas of U.S. Presidential Elections, and comparing it to The 10 Regions of US Politics, I found that the two regions with the greatest swing were Northeast Corridor (where the Democratic margin decreased by 7.38 percentage points) and Appalachia (where the Republican margin increased by 5.59 percentage points).

Addendum: More complete data here.