-5.39% is the change from 668 to 632
Calculation steps:
[( 632 - 668 ) ÷ 668] x 100 = -5.39%
Formula
Percentage change = [(632 - 668) / 668] x 100
Subtract the new number by the original number
632 - 668 = -36
-36 ÷ 668 = -0.05389221556886228
-0.05389221556886228 x 100 = -5.39%