-34.59% is the change from 665 to 435
Calculation steps:
[( 435 - 665 ) ÷ 665] x 100 = -34.59%
Formula
Percentage change = [(435 - 665) / 665] x 100
Subtract the new number by the original number
435 - 665 = -230
-230 ÷ 665 = -0.3458646616541353
-0.3458646616541353 x 100 = -34.59%