-30.7% is the change from 632 to 438
Calculation steps:
[( 438 - 632 ) ÷ 632] x 100 = -30.7%
Formula
Percentage change = [(438 - 632) / 632] x 100
Subtract the new number by the original number
438 - 632 = -194
-194 ÷ 632 = -0.3069620253164557
-0.3069620253164557 x 100 = -30.7%