-28.77% is the change from 664 to 473
Calculation steps:
[( 473 - 664 ) ÷ 664] x 100 = -28.77%
Formula
Percentage change = [(473 - 664) / 664] x 100
Subtract the new number by the original number
473 - 664 = -191
-191 ÷ 664 = -0.2876506024096386
-0.2876506024096386 x 100 = -28.77%