-55.41% is the change from 897 to 400
Calculation steps:
[( 400 - 897 ) ÷ 897] x 100 = -55.41%
Formula
Percentage change = [(400 - 897) / 897] x 100
Subtract the new number by the original number
400 - 897 = -497
-497 ÷ 897 = -0.5540691192865106
-0.5540691192865106 x 100 = -55.41%