I have a dataset like below: Finality Balance a 10 b 15 c 8 d 30 First, I would like to sum the finalities 'a' and 'd', resulting in 40. Then, this result must be divided by the sum of all rows. Is there a way to do so, since I have to do the same thing for b and c, separately (dividing 'b' by the sum of all rows and so on)? The final table I need is something like: Finality Result e (a+d) 0.6349 b 0.2381 c 0.1270 I don't know if I made myself clear. Sorry if don't.

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