how to read value from /401 in my pcr

HI

i have to write a PCR using /401 wage type (which stores projected no of months)

i am trying to write as below.

RTE=& /401.

but i am not able to fetch the value from /401 though in input table i can see the value under Rate as 11.

please help me in fetching the value form /401.

thx

j