Question #01cc9

1 Answer
Dec 16, 2016

Answer:

It is a #71.4% # increase

Explanation:

Any change in an amount can be given as a percent (of itself).

For example a change from 8 to 16 could be said as

"The amount doubled" which is the same as saying:
"An increase of 100%"

A change from 8 to 4 could be said as:

"The amount halved" which is the same as saying
"A decrease of 50%"

A change can be an increase, decrease, profit, loss, markup, discount etc. Use the same method:

#% "change" = "amount of change"/"original amount" xx 100%#

In this case the change was from #42 to 72#
This is an increase of #30#

% change = #30/42 xx 100%#

#=71.4%# increase