I have the Sales table and a Date table
I wrote the below query to calculate the DOD Sales
Sales Volume := SUM([Sales])
Sales Volume (Prev) := CALCULATE([Sales Volume], PREVIOUSDAY('Date'[Date])
Sales Volume (DOD) = DIVIDE([Sales Volume]-[Sales Volume (Prev)],[Sales Volume (Prev)])
However, these query above will calculate DOD based on continuous day of a month. My concern is I would like to calculate only those Order Date. For example, I would like to compare Sales on 4/12/2016 and 1/12/2016. ((50-20)/20). How should i amend the query to achieve that?