Script Logic - Prior Command

Question

Hi,
I want to perform this calculation for a budget application.
Jan= ((Value for base member ) *  30% (value obtained with Get command for Cuenta=14000)) /12
Feb= ( (value for base member) * 30% (get)/12) + Jan value (previous month value)
Mar=  the same calculation + Feb value (previous month value)
This part  calculates the first value without trouble:
*WHEN CUENTA
*IS I001
*REC(EXPRESSION=(%VALUE% * GET(METRICAS="PORDEPRE",VERSION="NAVER",AREA="NAAREA", MONEDA="NAMON",CUENTA="14000"))/12,CUENTA="I009")
Example:
value for base member I001 :  $50 ( 2010.Jan)  -  after the previous calc  =  (50 * 0.3 )/12 =  1.25
value for base member I002 : $20 (2010.Feb) = (20 * 0.3) / 12 = 0.5
Im having trouble to sum the value from the previous month using the PRIOR command... 
*XDIM_MEMBERSET TIEMPO=PRIOR(1),%SET%
*WHEN TIEMPO
*IS PRIOR
*WHEN CUENTA
*IS I002
*REC(EXPRESSION=(%VALUE% * GET(METRICAS="PORDEPRE",VERSION="NAVER",AREA="NAAREA", MONEDA="NAMON",CUENTA="14001"))/12,CUENTA="I010")
*REC(EXPRESSION=GET(CUENTA="I010") + GET(TIEMPO=PRIOR),CUENTA="I010")
In the last sentence, im trying to obtain the value  (0.5)  and sum the one from Jan (1.25)
Thanx in advance.

Answer 1

Hi,
This is the script adapted to my "cuenta and category"....  but there is an error related to PRIOR.
*SELECT (%BUDGETYEAR%, YEAR, "VERSION", "ID = 'BUDGET'")
*FOR %PERIOD% = JAN,FEB,MAR,APR,MAY,JUN,JUL,AUG,SEP,OCT,NOV, DEC
*XDIM_MEMBERSET CUENTA = I010
*XDIM_MEMBERSET TIEMPO = %BUDGETYEAR%
*WHEN TIEMPO
*IS %BUDGETYEAR%.%PERIOD%
REC(EXPRESSION=((%VALUE%0.3)/12)+GET(TIEMPO=TIEMPO.PRIOR),TIEMPO=%BUDGETYEAR%.%PERIOD%)
*ENDWHEN
*COMMIT
*NEXT
Validation status of executable file: Failed
- invalid fields for dim TIEMPO:PRIOR
Validation status of syntax: Success
PRIOR is not a property, am i correct ?
Is there another form to declare this ?
Thanx
Velázquez