You can replace leading spaces in a value with a fill character. Use the F option with the character immediately following the F in the specification as the fill character.
&symbol(F f )&
f = fill character
The figure for customer sales in the KNA1-UMSAT field is $700. The Dictionary description of the field specifies an output length 8.
&KNA1-UMSAT(F*)& -> **700.00
&KNA1-UMSAT(F0)& -> 00700.00