-19.73% is the change from 897 to 720
Calculation steps:
[( 720 - 897 ) ÷ 897] x 100 = -19.73%
Formula
Percentage change = [(720 - 897) / 897] x 100
Subtract the new number by the original number
720 - 897 = -177
-177 ÷ 897 = -0.19732441471571907
-0.19732441471571907 x 100 = -19.73%