Hi,
I think this example may help you,
| AMT-R 9019 | Amt for the current wage type less the value held in the RT for 9019 (Results wage types using exact splits) |
| AMTS /564 | Subtraction to zero - the value cannot be less than zero. |
| AMTS* | Subtraction to 0 (not negative) for the current wage type |
| AMTS* 9013 | Subtraction to 0 (not negative). Current wage type less 9013 |
| AMTSE 9043 | Subtraction to 0 (not negative). Current wage type less Amt held in the RT for wage type 9043 |
http://www.sd-solutions.com/SAP-Payroll-Schemas.html
John Cheriyan