-69.96% is the change from 669 to 201
Calculation steps:
[( 201 - 669 ) ÷ 669] x 100 = -69.96%
Formula
Percentage change = [(201 - 669) / 669] x 100
Subtract the new number by the original number
201 - 669 = -468
-468 ÷ 669 = -0.6995515695067265
-0.6995515695067265 x 100 = -69.96%