The annual number of deaths from cardiovascular disease in the United States decreased from 1,008,000 in 1970 to 910,600 in 2004, what is the percent change?

1 Answer
Jun 6, 2017

Answer:

See a solution process below:

Explanation:

The formula for calculating the percent change in a value between two points in time is:

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

Where:

#p# is the percent change - what we are solving for in this problem.

#N# is the New Value - 910600 in this problem.

#O# is the Old Value - 1008000 in this problem.

Substituting and solving for #p# gives:

#p = (910600 - 1008000)/1008000 *100#

#p = -97400/1008000 *100#

#p = -9740000/1008000#

#p = -9.7# rounded to the nearest tenth.

There was a change of #-9.7%# or a decrease in deaths of #9.75#