Need to use calculated measure as a filter in the report

[kiranb13]

Hi Team,

Below is my calculated measure.

num((sum(RAWVALUE)-(sum(SUMMATIONRAWVALUE)) - sum({<Readtime={'$(vPreviousReadDate)'}>}SUMMATIONRAWVALUE))/(sum(SUMMATIONRAWVALUE) -
sum({<Readtime={'$(vPreviousReadDate)'}>}SUMMATIONRAWVALUE)),'0%;0%')

I have the measure mentioned above. My requirement is 

1. I need to use the above mentioned measure as a filter. Filter via percentage.

2. if the negative values are displayed it should be displayed as absolute value and conditioned is applied with value should be greater than 1.

Can anyone suggest here ?