-35.22% is the change from 971 to 629
Calculation steps:
[( 629 - 971 ) ÷ 971] x 100 = -35.22%
Formula
Percentage change = [(629 - 971) / 971] x 100
Subtract the new number by the original number
629 - 971 = -342
-342 ÷ 971 = -0.35221421215242016
-0.35221421215242016 x 100 = -35.22%