=sum( {$<Periode = >}, Grootboeknummer = {7190}>} Grootboekmutatiebedrag) What i want is : the sum of Grootboekbedrag for all periods before the selected period and only from grootboeknummer 7190.
If it doesn`t work, we need to check the format of the field Period because, sometimes set analysis will not handle a date in a string format very well..