modify a bar graph

[smacko]

i would like to have a 2 column bar graph but add a 3rd data series onto it.
I was shown how to do it by add / remove function but have forgotten.
If you could give me a step by step it would be great as excel is NOT my strong point.
attached file to show what i would like.

[Andy Pope]

If you want you chart to look like the coloured cells in your example then read the following
http://peltiertech.com/WordPress/clu...column-charts/

[ucmapi]

I've do some changing on your graph according to your requirement. But I cannot change x-axis label position.

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http://www.ucmapi.com/chart

[Andy Pope]

check the revised data layout.