Pie chart with percentages

[fishqqq]

I thought this would be an easy one....
can someone please tell me how to make a chart based on a query that
has :

company name
currency
dollar amt

What i am hoping for is a chart of some kind that will list each
company along with the % amt they represent from the total dollar amt.

for example
if the list as two companies listed
Company A = CDN 75.00
Company B = CDN 25.00

Then the chart would show :
Company A = 75%
Company B = 25%

would this possible?
Tks
Steve