-35.09% is the change from 664 to 431
Calculation steps:
[( 431 - 664 ) ÷ 664] x 100 = -35.09%
Formula
Percentage change = [(431 - 664) / 664] x 100
Subtract the new number by the original number
431 - 664 = -233
-233 ÷ 664 = -0.3509036144578313
-0.3509036144578313 x 100 = -35.09%