-28.16% is the change from 664 to 477
Calculation steps:
[( 477 - 664 ) ÷ 664] x 100 = -28.16%
Formula
Percentage change = [(477 - 664) / 664] x 100
Subtract the new number by the original number
477 - 664 = -187
-187 ÷ 664 = -0.2816265060240964
-0.2816265060240964 x 100 = -28.16%