-10.99% is the change from 664 to 591
Calculation steps:
[( 591 - 664 ) ÷ 664] x 100 = -10.99%
Formula
Percentage change = [(591 - 664) / 664] x 100
Subtract the new number by the original number
591 - 664 = -73
-73 ÷ 664 = -0.10993975903614457
-0.10993975903614457 x 100 = -10.99%