Consider the following data.

Q1) Is there a way to show the delta in a column (maybe floating column)
chart with a block arrow showing the direction of change instead of a regular
column? (2nd data set)

Q2) AND, show the %delta as well (3rd data set)? (I've tried staggering the
data on a secondary axis [as I have in other charts] but it ends up 'under'
its respective column.)

RED WHITE BLUE
Jan-09 20 35 8
Feb-09 25 40 6
Mar-09 32 45 4
Apr-09 28 40 6
May-09 20 40 2

DELTA RED WHITE BLUE
Feb-09 5 5 -2
Mar-09 7 5 -2
Apr-09 -4 -5 2
May-09 -8 0 -4

%DELTA RED WHITE BLUE
Feb-09 25.0% 14.3% -25.0%
Mar-09 28.0% 12.5% -33.3%
Apr-09 -12.5% -11.1% 50.0%
May-09 -28.6% 0.0% -66.7%

TIA for any help.
casey