-74.25% is the change from 897 to 231
Calculation steps:
[( 231 - 897 ) ÷ 897] x 100 = -74.25%
Formula
Percentage change = [(231 - 897) / 897] x 100
Subtract the new number by the original number
231 - 897 = -666
-666 ÷ 897 = -0.7424749163879598
-0.7424749163879598 x 100 = -74.25%