-72.74% is the change from 664 to 181
Calculation steps:
[( 181 - 664 ) ÷ 664] x 100 = -72.74%
Formula
Percentage change = [(181 - 664) / 664] x 100
Subtract the new number by the original number
181 - 664 = -483
-483 ÷ 664 = -0.7274096385542169
-0.7274096385542169 x 100 = -72.74%