-68.35% is the change from 635 to 201
Calculation steps:
[( 201 - 635 ) ÷ 635] x 100 = -68.35%
Formula
Percentage change = [(201 - 635) / 635] x 100
Subtract the new number by the original number
201 - 635 = -434
-434 ÷ 635 = -0.6834645669291338
-0.6834645669291338 x 100 = -68.35%