How to use last value

[Jeopardize]

How to add this last value of each month&mob in null value  (3.field 1.vym_opn_dt 2.vym_mob 3.vym_limit(thi))

[HeshamKhja1]

Your question is not very clear. Can you please elaborate more?

Maybe add sample data and desired output?

[Jeopardize]

this is solution (use last(sum()) but i can't use last sum to apply in graph