13 Replies Latest reply: Mar 14, 2014 10:28 AM by Fabrice Aunez RSS

    Calculate the sum of the week for the current year (eg 2014), but on the condition that if in this same week data were last year (2013).

    Anton sineok

      Hello Help please! Need to calculate the sum of the week for the current year (eg 2014) but provided that if for that same week had data for the last year (2013). If data for the same week last year was not - sale this week should not be exposed to the sum. And painfully hard ...