Negative sign for Values. How to shift negative sign from right to left in WDJ?

Hi Experts,

   While i am feching data from table i am getting value as Ex: 100-(negative), but i want to show this as -100.

I got the data from RFC.

Data i am getting now:

Mat Customer Value Qty

M100 C100    100-  10-

But i want to show this as below.

Mat Customer Value Qty

M100 C100    -100  -10

I am not expert in WDJ, please give some suggitions or  sample coding(if possible).

Thank you a lot.

Terry