Grouping in SSRS to show percent of status

Hi,

I have a resultset as below

I want to display a PieChart which shows the percent of each status in it. Something Below

I have used below expression in Value field of chart and SLA_Status in category Group but value is showing as 0.5 and 0.5

TotalRecords is my dataset

"Chart1_CategoryGroup2") /Count(Fields!SLA_Count.Value,"TotalRecords")

Thanks & Regards,
Manjunath C Bhat,
http://manjunathcbhat.blogspot.com
http://manjunathcbhat.wordpress.com