-30.56% is the change from 638 to 443
Calculation steps:
[( 443 - 638 ) ÷ 638] x 100 = -30.56%
Formula
Percentage change = [(443 - 638) / 638] x 100
Subtract the new number by the original number
443 - 638 = -195
-195 ÷ 638 = -0.3056426332288401
-0.3056426332288401 x 100 = -30.56%