How do you calculate the percent change of 42 to 168?

1 Answer
Feb 9, 2017

Answer:

See the entire solution process below:

Explanation:

The formula for calculate the percentage change in a value is:

#p = (N - O)/O * 100#

Where:
#p# is the percentage change - what we are solving for
#N# is the New Value - #168# for this problem
#O# is the Old Value - #42# for this problem

Substituting and calculating gives:

#p = (168 - 42)/42 * 100#

#p = 126/42 * 100#

#p = 3 * 100#

#p = 300#

There was a 300% change.