-7.21% is the change from 638 to 592
Calculation steps:
[( 592 - 638 ) ÷ 638] x 100 = -7.21%
Formula
Percentage change = [(592 - 638) / 638] x 100
Subtract the new number by the original number
592 - 638 = -46
-46 ÷ 638 = -0.07210031347962383
-0.07210031347962383 x 100 = -7.21%