-68.98% is the change from 635 to 197
Calculation steps:
[( 197 - 635 ) ÷ 635] x 100 = -68.98%
Formula
Percentage change = [(197 - 635) / 635] x 100
Subtract the new number by the original number
197 - 635 = -438
-438 ÷ 635 = -0.6897637795275591
-0.6897637795275591 x 100 = -68.98%