-22.14% is the change from 664 to 517
Calculation steps:
[( 517 - 664 ) ÷ 664] x 100 = -22.14%
Formula
Percentage change = [(517 - 664) / 664] x 100
Subtract the new number by the original number
517 - 664 = -147
-147 ÷ 664 = -0.2213855421686747
-0.2213855421686747 x 100 = -22.14%