Find the percent change. Indicate whether it is an increase or a decrease. show work
30. original amount: 70; new amount: 55
Percent change = ((new amount - original amount)/original amount) x 100%
Percent change = ((55-70)/70) x 100%
Percent change = (-15/70) x 100%
Percent change = -0.214 x 100%
Percent change = -21.4%
This is a decrease of 21.4%.