Only show OR increase in the pie chart

[StacyCui]

Hi, I'd like to show the industry which CY OR-PY OR >0 in a pie chart. But in the Pie chart, There are several industries which has CY OR record (CY OR value is 0), PY has no OR record in the pie chart. like below screenshot. It shows 0. How to take away them? 

Here is my Measure:

= sum( aggr( if( Sum({<FY={'PY'},CATEGORY-={'Base+ Biz','Distributor Own Biz','MBP Distributor Public'}>} ORVALUE)<
Sum({<FY={'CY'},CATEGORY-={'Base+ Biz','Distributor Own Biz','MBP Distributor Public'}>} ORVALUE),
Sum({<FY={'CY'},CATEGORY-={'Base+ Biz','Distributor Own Biz','MBP Distributor Public'}>} ORVALUE)-
Sum({<FY={'PY'},CATEGORY-={'Base+ Biz','Distributor Own Biz','MBP Distributor Public'}>} ORVALUE)), DICHINABRANCH))