-32.46% is the change from 650 to 439
Calculation steps:
[( 439 - 650 ) ÷ 650] x 100 = -32.46%
Formula
Percentage change = [(439 - 650) / 650] x 100
Subtract the new number by the original number
439 - 650 = -211
-211 ÷ 650 = -0.32461538461538464
-0.32461538461538464 x 100 = -32.46%