Question

Bobby bought a DVD recorder for $280. Now it's in sale for $220. Find the percent of change in price. Round to the nearest whole percent if necessary.

Answer 1

it's 20% less than the original

Answer 2

first, find the ratio
220/280=11/14
since it is the ratio, change in price is 3/14
or (3/14)*100=21%
when round off to whole percentage.