# How do you find the percent change if original: 66 dimes and new: 30 dimes?

##### 1 Answer

Oct 30, 2015

read as -> 54 point 545454......%

#### Explanation:

Assumption: your question means the following

Old price = 66 dimes

New price= 30 dimes ( a reduction in price)

Express the reduction as a percentage of the old price.

Solution:

Change in price is (66-30) dimes = 36 dimes

As a proportion of the old price the reduction is

% is also a fraction but expressed as parts of 100 instead of parts of 66.

Without going into the mechanics of the mathematics involve the short cut method is:

This gives

The following is only stated as an interest point:

Expressed as an exact value this is