Answer
First, we can divide the decrease by the original amount to get a decimal number. We then express this decimal number as a percent. To express a decimal number as a percent, we move the decimal point two places to the right and attach the percentage sign.
For example:
The amount decreases from 10 to 6. We can see that the original amount decreased by 4.
$\frac{decrease}{original ~amount} = \frac{4}{10} = 0.4 = 40\%$
The percent decrease is 40%
Work Step by Step
It is quite simple to find percent decrease. First, we can divide the decrease by the original amount to get a decimal number. We then express this decimal number as a percent. To express a decimal number as a percent, we move the decimal point two places to the right and attach the percentage sign.
For example:
The amount decreases from 10 to 6. We can see that the original amount decreased by 4.
$\frac{decrease}{original ~amount} = \frac{4}{10} = 0.4 = 40\%$
The percent decrease is 40%
