-36.31% is the change from 628 to 400
Calculation steps:
[( 400 - 628 ) ÷ 628] x 100 = -36.31%
Formula
Percentage change = [(400 - 628) / 628] x 100
Subtract the new number by the original number
400 - 628 = -228
-228 ÷ 628 = -0.3630573248407643
-0.3630573248407643 x 100 = -36.31%