1, Click on Settings and reports 

2, Medical record/ Plan items set up  as shown below 

3, Click on Category-wide % price/fee increase under Plan management

4, Select a Category as shown below 

Click on Unit retail price increase in percentage 

NOTE : Retail price in percentage should be more than 0% to preview and approve 

Once the percentage of increase is enterered , click on preview and approve

And then click on Approve to save the modifications 

 Changes will be applied on the plan items of that specific category