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Hi, I'm not able to complete this simple task: build a new expression as a division of two existing progressive expressions.
Suppose I have a table like this:
Month Amount Margin
1 300 12
2 150 3
3 220 45
I need to calculate a column called "Progressive spread" equal to the progressive sum of Margin diveded by the progressive sum of Amount.
The result should be:
Month Amount Margin Progressive amount Progressive margin Progressive spread (<= this is what I need)
1 300 12 300 12 12 / 300 = 4.00%
2 150 3 300 + 150 = 450 12 + 3 = 15 15 / 450 = 3.33%
3 220 45 300 + 150 + 220 = 670 12 + 3 + 45 = 60 60 / 670 = 8.96%
I've tried every combination of progressive, sum total, sum above, ... but I wasn't able to achive the goal.
Can someone help me?
Thanks in advance
please take a look at my exam application. Note that you can use names (labels) of chart-expressions using square-brackets .
View solution in original post
that's exactly what I need.
How can I draw the "Progressive spread" on a line graph having month as X axis?
I've tried your formula but it plot the spread of the month, not the progressive one.
Sorry for my previous post: I made it!
The problem was that in the original table I have many rows for each month and so I had to previously build two columns called "Amount total" as SUM(Amount) and "Margin total" as SUM(Margin) to use in next calculations.
Thanks for your help