-30.65% is the change from 633 to 439
Calculation steps:
[( 439 - 633 ) ÷ 633] x 100 = -30.65%
Formula
Percentage change = [(439 - 633) / 633] x 100
Subtract the new number by the original number
439 - 633 = -194
-194 ÷ 633 = -0.30647709320695105
-0.30647709320695105 x 100 = -30.65%