-34.39% is the change from 663 to 435
Calculation steps:
[( 435 - 663 ) ÷ 663] x 100 = -34.39%
Formula
Percentage change = [(435 - 663) / 663] x 100
Subtract the new number by the original number
435 - 663 = -228
-228 ÷ 663 = -0.3438914027149321
-0.3438914027149321 x 100 = -34.39%