I am trying to chart percentages. I want a chart that has a bar graph
that show this information.

If I have 8 calls total taken and 2 of them caused errors.

I want one bar to be a total of 8 showing 2 calls in a color and 6
colors in another color.

Then I would like to have a line graph across all the bars to compare
the number of error calls.

I have seen example of this as a combination chart. But cant find any
details on how to set my data up.

If anyone has any ideas please let me know.

Thankyou,