-36.29% is the change from 631 to 402
Calculation steps:
[( 402 - 631 ) ÷ 631] x 100 = -36.29%
Formula
Percentage change = [(402 - 631) / 631] x 100
Subtract the new number by the original number
402 - 631 = -229
-229 ÷ 631 = -0.3629160063391442
-0.3629160063391442 x 100 = -36.29%