-36.06% is the change from 635 to 406
Calculation steps:
[( 406 - 635 ) ÷ 635] x 100 = -36.06%
Formula
Percentage change = [(406 - 635) / 635] x 100
Subtract the new number by the original number
406 - 635 = -229
-229 ÷ 635 = -0.3606299212598425
-0.3606299212598425 x 100 = -36.06%