Hide Values of columns in table

[Aanchal]

Dear All, 

Kindle help me in achieving 

TranKey	Amount	Refund	Premium	Mismatch
1	100		100	100
1	-30	-30		-30

This is my table in frontend where Trankey , Amount , refund and Premium are calculated on backend and for Mismatch is an expression 

=if(sign(min(total<Trankey> [Amount]))<>sign(max(total<Trankey>[Amount])),[Amount])

I have to show a condition in expression on frontend where Mismatch is coming Refund and Premium should be  Blank.

TranKey	Amount	Refund	Premium	Mismatch
1	100			100
1	-30			-30

This is the correct output i have to achieve.