-18.22% is the change from 664 to 543
Calculation steps:
[( 543 - 664 ) ÷ 664] x 100 = -18.22%
Formula
Percentage change = [(543 - 664) / 664] x 100
Subtract the new number by the original number
543 - 664 = -121
-121 ÷ 664 = -0.1822289156626506
-0.1822289156626506 x 100 = -18.22%