-4.35% is the change from 897 to 858
Calculation steps:
[( 858 - 897 ) ÷ 897] x 100 = -4.35%
Formula
Percentage change = [(858 - 897) / 897] x 100
Subtract the new number by the original number
858 - 897 = -39
-39 ÷ 897 = -0.043478260869565216
-0.043478260869565216 x 100 = -4.35%