In the past I have had more than 1 client request that the negative numbers with signage on the right are displayed in ALV reports and / or extracted to files with the signage to the left.
-100.00 NOT100.00-
I decided to create a conversion exit to perform this format conversion, as below. And this then is implemented in my alv / file extract logic.
" ALV field cat coding...apply the conv exit accordingly to the edit_mask attribute...
....
if <fieldcat>-inttype = 'P'.
<fieldcat>-edit_mask = '==ZSIGD'.
endif.
.....
similarly, if you are extracting the data to a file,
the conversion can also be called to format the number
.......
do.
assign component sy-index of structure <table_line> to <field>.
if sy-subrc is initial. "we still processing fields
clear lv_value.
describe field <field> type lv_typ1.
if lv_typ1 = 'D'. " format for date
yyyymmdd_date_format <field> lv_value.
elseif lv_typ1 = 'h'.
move space to lv_value.
elseif lv_typ1 = 'P'.
call function 'CONVERSION_EXIT_ZSIGD_OUTPUT'
exporting
input = <field>
importing
output = lv_value.
else. "all other formats
move <field> to lv_value.
endif.
">>>build up the row that will be written to the file
concatenate lv_fileline lv_value into lv_fileline
separated by cl_abap_char_utilities=>horizontal_tab.
.......
Result of File extract