Bar chart filtering one bar

Hi,

I have a bar chart, where one bar is showing order value average for last 12 month. This I have filtered by filtering the visualization with last 12 months. The axis is showing days (1, 2, 3, etc), like the average of order value for every first day of the month and so on. Order value itself is a measure multiplying two columns of a table.

Now I would like to have another bar in the same chart showing the order value for this month. How can I do this?