Question #01cc9

Question

2134 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-12-16T18:50:28

It is a $71.4 %$ $71.4%$ increase

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:

$% change = \frac{amount of change}{original amount} \times 100 %$ $% "change" = "amount of change"/"original amount" xx 100%$

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

% change = $\frac{30}{42} \times 100 %$ $30/42 xx 100%$

$= 71.4 %$ $=71.4%$ increase