portal row data from previous row?

Discussion created by tunghua on Jul 7, 2013
Latest reply on Jul 8, 2013 by davehob

Hi everyone:


I am developing a system for publisher to calculate their book stock, every year we have to calculate our stock lavel at year end, and next year, we use "last year end stock value" as "new year starting value", I have been searching at the script step, but I can not find a way to get "last year end stock" to add to new portal row, can any one guide me a way for that? I have attached my screen shot on this message.