-33.69% is the change from 650 to 431
Calculation steps:
[( 431 - 650 ) ÷ 650] x 100 = -33.69%
Formula
Percentage change = [(431 - 650) / 650] x 100
Subtract the new number by the original number
431 - 650 = -219
-219 ÷ 650 = -0.33692307692307694
-0.33692307692307694 x 100 = -33.69%