-70.71% is the change from 635 to 186
Calculation steps:
[( 186 - 635 ) ÷ 635] x 100 = -70.71%
Formula
Percentage change = [(186 - 635) / 635] x 100
Subtract the new number by the original number
186 - 635 = -449
-449 ÷ 635 = -0.7070866141732284
-0.7070866141732284 x 100 = -70.71%