-5.96% is the change from 638 to 600
Calculation steps:
[( 600 - 638 ) ÷ 638] x 100 = -5.96%
Formula
Percentage change = [(600 - 638) / 638] x 100
Subtract the new number by the original number
600 - 638 = -38
-38 ÷ 638 = -0.05956112852664577
-0.05956112852664577 x 100 = -5.96%