Dear is there any possiblity to create a static value from an expression?
For example, i have this table that calculates the sum of people in a region. I want that every last day of the month, the value get static on it is.
To be more clear, in Jan 31st I had 30 people, nevertheless in February 20th I have 36 people in Jan but i only want to see 30, that was the value on Jan 31st.