-10.24% is the change from 664 to 596
Calculation steps:
[( 596 - 664 ) ÷ 664] x 100 = -10.24%
Formula
Percentage change = [(596 - 664) / 664] x 100
Subtract the new number by the original number
596 - 664 = -68
-68 ÷ 664 = -0.10240963855421686
-0.10240963855421686 x 100 = -10.24%