Percent Change. Percent Change. A percentage change is a way to express a change between the old value and the new one (which is the extent to which something gains or loses value.) Percent changes are useful to help people understand changes in a value over time. . PERCENT CHANGE.
WHEN THE VALUE OF AN ITEM GOES DOWN
Andrew works in a supermarket for $10.00 per hour. He now gets paid $12.00 per hour.
Is this a percent increase or decrease?
The staff at a company went from 40 to 30 employees. Is this a percent increase or decrease?