# Percent error?

if i have a value 396.3 and the actual was 330, calculate percent error showing work?thanks:D

Relevance

theoretical - actual / actual * 100% = % error

(396.3 - 330)/330 = 0.200909091

0.200909091 * 100 = 20.09% error

Source(s): Biology major at UC Berkeley

It's the difference of the two divided by expected. Then the quotient is multiplied by 100.

396.3-330=66.3

66.3/330=0.2009

0.2009 x 100=20%

• 3 years ago

No. % errors is the proportion of a volume that is simply by errors: calculated as |errors/fee|x100%. The % distinction is the proportion by employing which 2 parts variety: calculated as |(a-b)/b|x a hundred% with a being an experimental fee and b being a envisioned fee. besides the fact that if, each at times the type between the two parts is used as a crude approximation for the errors, wherein case the two could have an identical fee, yet are nonetheless no longer technically an identical component.

First, you take the difference of your value and the actual value, 396.3-330 = 66.3

Then you take that difference and divide it by the actual value : 66.3/330 = .20

so the % error is 20%

Hope this helps :D