-88.82% is the change from 635 to 71
Calculation steps:
[( 71 - 635 ) ÷ 635] x 100 = -88.82%
Formula
Percentage change = [(71 - 635) / 635] x 100
Subtract the new number by the original number
71 - 635 = -564
-564 ÷ 635 = -0.8881889763779528
-0.8881889763779528 x 100 = -88.82%