It’s a little bit confusing for me and others to understand the mathematical summary behind the percentages. I’m the opinion that all answers per poll should result to 100% and not 200%. Even for two votes. That’s not logical. Is this a bug? [afbeelding]

Wasn’t this just fixed? [afbeelding] Polls percentage accounting is not accurate Bug It seems when calculating percentage for each option in polls Discourse uses floats truncating instead of rounding. This can result into inaccurate percentage values. For …

I’m running the latest-release +59. :frowning:

The meaning of that poll result is: 49% of all voters selected “Montags” 24% of all voters selected “Dienstags” … This seems to be a multiple choice poll, so it is perfectly normal that the sum of the percentages is greater than 100%. But the -1% definitely looks like a bug.

Yeah I will deactivate the “rounding up to 100%” on multiple polls. Nice catch :+1:

@terraboss , I just pushed a fix for multiple choice polls :fried_shrimp: https://github.com/discourse/discourse/commit/9d2128dad30aaa96a0b13be666daabbbba2993f8

Can someone explain me the math behind polls?

Support

jomaxro (Joshua Rosenfeld) 22 november 2015 om 09:19 2

Wasn’t this just fixed?

Topic		Antwoorden	Weergaven
Polls percentage accounting is not accurate Bug polls	1	1045	19 november 2015
Rounding of percentages on polls is inaccurate Feature polls	4	3011	25 januari 2024
Calculate real number of votes from Poll percentages Support polls	2	2500	19 december 2022
Poll percentage inaccuracy! Bug polls	2	120	29 september 2025
Rounding of poll percentages is imprecise Feature	10	1749	3 november 2016

Can someone explain me the math behind polls?

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