-14.89% is the change from 638 to 543
Calculation steps:
[( 543 - 638 ) ÷ 638] x 100 = -14.89%
Formula
Percentage change = [(543 - 638) / 638] x 100
Subtract the new number by the original number
543 - 638 = -95
-95 ÷ 638 = -0.14890282131661442
-0.14890282131661442 x 100 = -14.89%