-84.74% is the change from 439 to 67
Calculation steps:
[( 67 - 439 ) ÷ 439] x 100 = -84.74%
Formula
Percentage change = [(67 - 439) / 439] x 100
Subtract the new number by the original number
67 - 439 = -372
-372 ÷ 439 = -0.8473804100227791
-0.8473804100227791 x 100 = -84.74%