Number of Decimal Places to be set for '-' values

Hi Friends,

I've got the '' values & '-' values in the query, when i use "Number of Decimal Places" 0.00 for the particular key figure, which contains both values. '' values are getting displayed properly like 10000.00, but '-' values aren't getting displayed properly, still they are existing same like like 20000.00000000-, but i want these '-' values to be set like 20000.00-

how to make it possible?

awaiting for your inputs.........