Answer
The percent decrease of the sale price from the regular price is 15%
Work Step by Step
We can find the decrease from the regular price to the sale price.
$\$840 -\$714 = \$126$
We can express this decrease as a decimal of the regular price.
$\frac{\$126}{\$840} = 0.15$
To express a decimal as a percent, we can move the decimal point two places to the right.
$0.15 = 15\%$
The percent decrease of the sale price from the regular price is 15%
