How do I do this?

[wbdickson]

I need to create a graph plotting and average value e.g. 7.7, 5.4, 9.0. That is the easy part. What I want to do is on the line where the value is plotted I want to use different colors to show the % breakdown of that average. For example if I have a 7.2 the bar should go to 7.2 and then on the bar it would show by color that 10% was 1 15% was 6 45% was 9 etc. Can this be done??

 

[nagornyi]

If 10% of something equals 1, how is that possible that 15% equals 6?