-27.11% is the change from 664 to 484
Calculation steps:
[( 484 - 664 ) ÷ 664] x 100 = -27.11%
Formula
Percentage change = [(484 - 664) / 664] x 100
Subtract the new number by the original number
484 - 664 = -180
-180 ÷ 664 = -0.2710843373493976
-0.2710843373493976 x 100 = -27.11%