-69.73% is the change from 664 to 201
Calculation steps:
[( 201 - 664 ) ÷ 664] x 100 = -69.73%
Formula
Percentage change = [(201 - 664) / 664] x 100
Subtract the new number by the original number
201 - 664 = -463
-463 ÷ 664 = -0.697289156626506
-0.697289156626506 x 100 = -69.73%