Delete first space (to_char) SQL Oracle

Question

I write a select:

select orderid, 
       unitprice*(1-discount)*quantity as "a", 
       to_char(unitprice*(1-discount)*quantity, '99999D99') as "SUM"
from OrderDetails
where unitprice*(1-discount)*quantity > 5000

Result is:

How delete only first space?
Mask for char (only 8 symbols):
[number/space][number/space][number/space][number/space][number].[number][number]
If use 'FM', when result:

But, i need:

Answer 1

The leading space is for the sign. If you are sure you use only positive numbers you can remove the sign token with a substring. If you have a sign you can put it at the end if you want like this:

99999D00S

Answer 2

It appears that you want the format mask of your to_char to be fm9999D00, i.e.

to_char(unitprice*(1-discount)*quantity, 'fm99999D00') as "SUM"