-99.55% is the change from 897 to 4
Calculation steps:
[( 4 - 897 ) ÷ 897] x 100 = -99.55%
Formula
Percentage change = [(4 - 897) / 897] x 100
Subtract the new number by the original number
4 - 897 = -893
-893 ÷ 897 = -0.9955406911928651
-0.9955406911928651 x 100 = -99.55%