-97.64% is the change from 720 to 17
Calculation steps:
[( 17 - 720 ) ÷ 720] x 100 = -97.64%
Formula
Percentage change = [(17 - 720) / 720] x 100
Subtract the new number by the original number
17 - 720 = -703
-703 ÷ 720 = -0.9763888888888889
-0.9763888888888889 x 100 = -97.64%