-63.94% is the change from 635 to 229
Calculation steps:
[( 229 - 635 ) ÷ 635] x 100 = -63.94%
Formula
Percentage change = [(229 - 635) / 635] x 100
Subtract the new number by the original number
229 - 635 = -406
-406 ÷ 635 = -0.6393700787401575
-0.6393700787401575 x 100 = -63.94%