-34.8% is the change from 638 to 416
Calculation steps:
[( 416 - 638 ) ÷ 638] x 100 = -34.8%
Formula
Percentage change = [(416 - 638) / 638] x 100
Subtract the new number by the original number
416 - 638 = -222
-222 ÷ 638 = -0.34796238244514105
-0.34796238244514105 x 100 = -34.8%