4 Replies Latest reply on Oct 13, 2017 6:48 AM by george.gousios

    Difference between current-previous values

    george.gousios

      Hi,

      I want to calculate the difference between current and previous values, and I am using

       LOOKUP
      

      with

       ZN
      

       

      For the first difference, I am receiving null.I though that ZN will give me 0.

      But, I want to just leave the first value as it is and begin calculating the difference from the second value.

       

      How can I do that?

       

      Thanks!