In your PCR, your first operation is to compare with Payroll Period 14 of 2009.
Change to CMPER 1409 if you want the comparison with Payroll Period 09 of 2014.
To operation CMPER, you have 2 return values, smaller than (<) and other (*). If the Payroll Period is smaller than 14/2009, then WT 3001 will "disappear" because you have not used operation ADDWT * to keep it in the Input Table.
Similarly, following operation NUM?59, if the return value is greater than (>), then WT WT 3001 will "disappear" because you have not used operation ADDWT * to keep it in the Input Table.
And as mentioned by Sven, you could replace operation AMT%1 by operation AMT*Kzzzzz, where zzzzz is a constant from table view V_T511K (which constant could have a value that changes over time), but the most important part is that the result of all your calculations will "disappear" since you are not transfering the result back into the Input Table (through operation ADDWT * or ADDWT xxxx, nor into a temporary variable (through operation ADDWT& xxxx).