-22.89% is the change from 664 to 512
Calculation steps:
[( 512 - 664 ) ÷ 664] x 100 = -22.89%
Formula
Percentage change = [(512 - 664) / 664] x 100
Subtract the new number by the original number
512 - 664 = -152
-152 ÷ 664 = -0.2289156626506024
-0.2289156626506024 x 100 = -22.89%