Percentage Calculation in Cognos Report Author 10.0.1

[gosoccer]

Friends,
Need Help!!

1. I have a calculation items in FM MODEL as following,
if ( STATUS = 'SUCCESS')
THEN (1) ELSE (0)

2. As a part of the Report Author, I have to show the
total 'SUCCESS' and the PERCENTAGE based on some ACTION.

I.E.
Event/Action | Number Successful | % Success | Number Failure| % Failure |Total

Logoff-timeout 1 | 200% | 5 | 8% | 6

The Number of Successful is Published from Package.

As you can see the percentages are not correct. 200% and 8% are not the right values.The calculation for the % needs to be i.e *# success 1/6 which is**
*the Total for identifying the %.*

Does anybody know what dataitem can be created to do the following.

Thx in advance for your time.