-83.6% is the change from 439 to 72
Calculation steps:
[( 72 - 439 ) ÷ 439] x 100 = -83.6%
Formula
Percentage change = [(72 - 439) / 439] x 100
Subtract the new number by the original number
72 - 439 = -367
-367 ÷ 439 = -0.835990888382688
-0.835990888382688 x 100 = -83.6%