-34.54% is the change from 970 to 635
Calculation steps:
[( 635 - 970 ) ÷ 970] x 100 = -34.54%
Formula
Percentage change = [(635 - 970) / 970] x 100
Subtract the new number by the original number
635 - 970 = -335
-335 ÷ 970 = -0.34536082474226804
-0.34536082474226804 x 100 = -34.54%