-80.91% is the change from 440 to 84
Calculation steps:
[( 84 - 440 ) ÷ 440] x 100 = -80.91%
Formula
Percentage change = [(84 - 440) / 440] x 100
Subtract the new number by the original number
84 - 440 = -356
-356 ÷ 440 = -0.8090909090909091
-0.8090909090909091 x 100 = -80.91%