Default positive/negative amount when post retirement via AS91/AS92

When we post retirement via AS91 or AS92, we could find system has default the field is positive or negative.

For example:

Enter revaluation amount 10000. Then enter, the amount will show as -10000.

System will do following check in SAPLALTD， include LALTDI0S:

CASE TABW_ANSHKZ_TMP.

      WHEN ‘H’.

……

IF GT_ANTVAL-AUFWV > 0.

          GT_ANTVAL-AUFWV = 0 – GT_ANTVAL-AUFWV.

        ENDIF.

……

Here we could find if we enter a positive revaluation amount, system will change it to negative.

For other transaction, we could also check the default amount is positive or negative here.