-19.44% is the change from 638 to 514
Calculation steps:
[( 514 - 638 ) ÷ 638] x 100 = -19.44%
Formula
Percentage change = [(514 - 638) / 638] x 100
Subtract the new number by the original number
514 - 638 = -124
-124 ÷ 638 = -0.19435736677115986
-0.19435736677115986 x 100 = -19.44%