How to show only %age value in graph

Hi All,

I have created a Chart (Combind Colum Line Chart with 2 Y Axes). I have attached snapshot aswell.

here i stuck : @ snap 2 when i click on line bar i am getting store code short name and growth %. but as per requirement, we need to show only growth %.

I am using SAP BI 4.1 SP 5.

Thanks in Advance..

Jeet