divide dimension field by total row in a pivot table

[DwayneO]

Hello,
How can I divide a dimension field in a row by the total dimension row in a pivot table?

For example, in my pivot table I have a dimension called 'Zone'  (values A, B,C) that displays vertically and another dimension called 'Delivery Type' (Values - Email, Fax, Image - Only, Manual Print, etc.) that is displayed horizontally like this with a calculation of Sum(Measure):

Zone		Delivery Type	Email	Fax	Image - Only	Manual Print	Manual Bundle	Manual Package	Automated Print	Automated Bundle	Automated Email	Total
A			12,585	25	9	16,007	2,587	127	13,458	0	1,789	46,587
B			70,782	43,362	23,224	94,358	79,453	8,878	47,818	5,160	4,776	377,811
C			10,509	510	18,837	9,547	4,373	9	4,723	2,430	1,627	52,565
										Grand Total:		476,963

I want to show a percentage of each delivery type for a zone divided by the row total for a zone (example  (zone A  of Delivery Type Email 12,585 / Row Total of Zone A 46,587 ) = 27.01%)  However, I can't get it work.

My calculation of SUM(Measure) / SUM(TOTAL Measure) is giving me the percentage of each delivery type divided by the entire total (example  (zone A  of Delivery Type Email 12,585 / Grand Total 476,963 ) = 2.64%)

Here is my desired result:

Zone	Delivery Type	Email	Fax	Image - Only	Manual Print	Manual Bundle	Manual Package	Automated Print	Automated Bundle	Automated Email	Total
A		27.01%	0.05%	0.02%	34.36%	5.55%	0.27%	28.89%	0.00%	3.84%	100.00%
B		18.73%	11.48%	6.15%	24.97%	21.03%	2.35%	12.66%	1.37%	1.26%	100.00%
C		19.99%	0.97%	35.84%	18.16%	8.32%	0.02%	8.99%	4.62%	3.10%	100.00%

Any ideas would be greatly appreciated.  Thanks.

[DwayneO · Accepted solution]

I was able to figure out the solution for my issue. 

New Expression:

Sum(Measure) / Sum(TOTAL <Zone> Measure)