-69.23% is the change from 663 to 204
Calculation steps:
[( 204 - 663 ) ÷ 663] x 100 = -69.23%
Formula
Percentage change = [(204 - 663) / 663] x 100
Subtract the new number by the original number
204 - 663 = -459
-459 ÷ 663 = -0.6923076923076923
-0.6923076923076923 x 100 = -69.23%