Excel 2007 : Conditional Formatting using Icon Sets

I am trying to set the following conditions using the 3 round circles green yellow and red.
I want:

GREEN if cell value >= -5%
YELLOW if cell value <-5% and > -10%
REDif cell value <= -10%

I don't seem to be able to set the last criteria for red.
What I do have set tells me I am overlapping.
Any help would be appreciated

I am not able to put this criteria into the attached spreadsheet.

Justine

Thank you so much for your help.
Worked like a charm.
Justine