Answer:
-9%
Step-by-step explanation:
First you subtract the measured and the accepted value.
(Measured value: the value you get in the lab)
(Accepted value: the actual value)
After you subtract 4.55-5.0, you should get (negative) -0.45
Take -0.45 and divide that with 5.0 you should get -0.09
Multiply -0.09 by 100 and you get your percentage error
= -9%
