-70.39% is the change from 635 to 188
Calculation steps:
[( 188 - 635 ) ÷ 635] x 100 = -70.39%
Formula
Percentage change = [(188 - 635) / 635] x 100
Subtract the new number by the original number
188 - 635 = -447
-447 ÷ 635 = -0.7039370078740157
-0.7039370078740157 x 100 = -70.39%