Calulations using TMVL SAP BPC10 NW

Hi Experts    

I am not sure if this is possible?

I am trying to use script logic to forecast some balance sheet account.

1. Get prior years balance for account code AC_2016100

2. Perform a calculation using the prior years balance (cacluation AC_2016100 / AC_60501*365)

3. Post the result of the calculation to AC_2016100_INP

The script that i have created is as follows.

*XDIM_MEMBERSET TIME = "2014.12"

*WHEN CATEGORY
*IS Budget
*REC(FACTOR=1, TIME=TMVL(-1,2015.01), (AC_2016100 / AC_60501*365),ACCOUNT=AC_2016100_INP)
*ENDWHEN

*COMMIT

I would be greatful for any assistance

Thanks in advance