-45.94% is the change from 812 to 439
Calculation steps:
[( 439 - 812 ) ÷ 812] x 100 = -45.94%
Formula
Percentage change = [(439 - 812) / 812] x 100
Subtract the new number by the original number
439 - 812 = -373
-373 ÷ 812 = -0.45935960591133007
-0.45935960591133007 x 100 = -45.94%