-7.53% is the change from 970 to 897
Calculation steps:
[( 897 - 970 ) ÷ 970] x 100 = -7.53%
Formula
Percentage change = [(897 - 970) / 970] x 100
Subtract the new number by the original number
897 - 970 = -73
-73 ÷ 970 = -0.07525773195876288
-0.07525773195876288 x 100 = -7.53%