Error in format number in custom report

Hi, GurusPlease Help us on this issue

We have customized a Report to have all supplier movements.

We must have all numbers to be formatted like 10,000.00 but our report output format all numbers except number contains three digits only.

Example :

original number                                Formatted number output

     10000                                                   10,000.00

     1000                                                     1,000.00

     968                                                       968       We want this number to be 968.00

     0.1                                                        0.1        We want this number to be 0.10

Thanks

George