-19.73% is the change from 664 to 533
Calculation steps:
[( 533 - 664 ) ÷ 664] x 100 = -19.73%
Formula
Percentage change = [(533 - 664) / 664] x 100
Subtract the new number by the original number
533 - 664 = -131
-131 ÷ 664 = -0.19728915662650603
-0.19728915662650603 x 100 = -19.73%