I want to show Moving average line in chart:
I have 3 measures the first is Sum of last year(N-1) the seconde Sum of current year(N) and last Sum of budget (N) and I don't now what should write in expression of reference ligne.
thanks in advance
![KADJ_0-1637162752737.png KADJ_0-1637162752737.png](/t5/image/serverpage/image-id/66862i1EA242BFF60D4464/image-size/medium?v=v2&px=400)
![KADJ_1-1637163006729.png KADJ_1-1637163006729.png](/t5/image/serverpage/image-id/66863i03BFD19A242FFB71/image-size/medium?v=v2&px=400)
i want like this result
![KADJ_2-1637163148885.png KADJ_2-1637163148885.png](/t5/image/serverpage/image-id/66864i98940C99336A2AA5/image-size/medium?v=v2&px=400)