How do you identify the percent of change as an increase or a decrease 75 people to 25 people?

1 Answer
Mar 27, 2017

Answer:

See the entire solution process below:

Explanation:

The formula for calculating the percent of change between two values is:

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

Where:

#p# is the percent of change/

#N# is the New Value, #25# people for this problem

#O# is the Old Value, #75# people for this problem

Substituting a calculating #p# gives:

#p = (25 - 75)/75 * 100#

#p = (-50)/75 * 100#

#p = (-5000)/75#

#p = -66.7# rounded to the nearest tenth.

There was a #66.7%# #color(red)(decrease)# in the number of people.