There's currently a bug with (at least) Windfury Totem on the damage breakdown. It goes a little like this:
Swing with windfury proc: count of Windfury Totem goes up to 1. White swing count goes up to 1.
Swing without windfury proc directly after: count of Windfury Totem goes up to 2. White swing count stays at 1.
On the second, non-windfury swing following a windfury swing, the damage from the white swing gets put into windfury totem breakdown instead of white swing damage. It's essentially doubling Windfury Totem damage in the breakdown while taking away from white swings.
Combat log:
You gain 1 extra attack through Windfury Totem.
You hit Undercity Practice Dummy for 363. (glancing)
You hit Undercity Practice Dummy for 396. (glancing)
Damage breakdown at this point is 1 count of white swing (396), 1 count of Windfury Totem (363) (which may be another bug, I'm not sure if it's supposed to be 363 white and 396 Windfury or not).
After that swing:
You hit Undercity Practice Dummy for 312. (glancing)
Damage breakdown at this point is 1 count of white swing (396), 2 counts of Windfury Totem (363, 312). It should be 2 white swings (396, 312) and 1 Windfury totem swing (363).
The total damage is correct, the parsing/breakdown is wrong.