-25.31% is the change from 897 to 670
Calculation steps:
[( 670 - 897 ) ÷ 897] x 100 = -25.31%
Formula
Percentage change = [(670 - 897) / 897] x 100
Subtract the new number by the original number
670 - 897 = -227
-227 ÷ 897 = -0.2530657748049052
-0.2530657748049052 x 100 = -25.31%