-84.72% is the change from 635 to 97
Calculation steps:
[( 97 - 635 ) ÷ 635] x 100 = -84.72%
Formula
Percentage change = [(97 - 635) / 635] x 100
Subtract the new number by the original number
97 - 635 = -538
-538 ÷ 635 = -0.8472440944881889
-0.8472440944881889 x 100 = -84.72%