-17.8% is the change from 635 to 522
Calculation steps:
[( 522 - 635 ) ÷ 635] x 100 = -17.8%
Formula
Percentage change = [(522 - 635) / 635] x 100
Subtract the new number by the original number
522 - 635 = -113
-113 ÷ 635 = -0.17795275590551182
-0.17795275590551182 x 100 = -17.8%