-13.7% is the change from 664 to 573
Calculation steps:
[( 573 - 664 ) ÷ 664] x 100 = -13.7%
Formula
Percentage change = [(573 - 664) / 664] x 100
Subtract the new number by the original number
573 - 664 = -91
-91 ÷ 664 = -0.13704819277108435
-0.13704819277108435 x 100 = -13.7%