-25.98% is the change from 897 to 664
Calculation steps:
[( 664 - 897 ) ÷ 897] x 100 = -25.98%
Formula
Percentage change = [(664 - 897) / 897] x 100
Subtract the new number by the original number
664 - 897 = -233
-233 ÷ 897 = -0.25975473801560756
-0.25975473801560756 x 100 = -25.98%