Help Needed Simple Question Why Use Percentages To Compare?

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chez07
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Help Needed Simple Question Why Use Percentages To Compare?

Post by chez07 » Wed Sep 05, 2007 6:37 pm

Any One Know The Answer To --

Why is it nessary to use "percentage change in mass" and not "change in mass" when comparing results?

Plz Help :cry:

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AstusAleator
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Post by AstusAleator » Thu Sep 06, 2007 1:01 am

that's a case-specific question and we don't know the context so we can't help much.

I'm guessing that you had two unequal masses to begin with. If you had 5g in sample A and 100g in sample B, and they both lost 2.5g, then sample A lost 50% of its mass while sample B only lost 2.5%.
I'm also guessing that there are other factors needing to be considered.
What did the parasitic Candiru fish say when it finally found a host? - - "Urethra!!"

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MichaelXY
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Post by MichaelXY » Thu Sep 06, 2007 5:54 am

I would say, it is because it is a way to better visualize something. It is easier for the reader of a report of data to interpret a percent of change rather than view the data and have to calculate change for themselves.

23.4 out of a 100 people may agree with my claim :)

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