-28.21% is the change from 638 to 458
Calculation steps:
[( 458 - 638 ) ÷ 638] x 100 = -28.21%
Formula
Percentage change = [(458 - 638) / 638] x 100
Subtract the new number by the original number
458 - 638 = -180
-180 ÷ 638 = -0.28213166144200624
-0.28213166144200624 x 100 = -28.21%