Compare rows based on date - see description
I have rows of data based on dates and employee details.
For eg, I have date column, employee ID and Prokect ID. The data is from january 1st to january 22nd.
I want to compare each dates data and see if there is any change in the employees ID for the next date.
If i have 200 employees on january 1 and 203 employees on january 2, I need to show the difference as 3 in the new column.
How can i do the row comparison and do this calculation?