Displaying conditional colors in a column chart
For example, you want to demonstrate the differences in sales during 2011 - 2013:

To create the chart like this one, do the following:
1. Split you data to the different columns:
- Column I = IF (cell<7%, cell, "")
- Column II = IF (AND (cell>=7%, cell<15%, cell, "")
- Column III = IF (cell>15%, cell, "")
For example (here cell = D*):

2. Select the data cells.
3. On the Insert tab, in the Charts group, choose the Column button:

Choose Clustered Column. Change Data Source if necessary.

4. Open Format Axis on the Format task pane, in which:
- In the Labels group, in the Label Position list, choose Low:
- In the Number group, choose format you prefer:
You can then make any other adjustments to get the look you need.