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?

Question

1426 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-06-06T14:23:55

See a solution process below:

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#