-82.92% is the change from 439 to 75
Calculation steps:
[( 75 - 439 ) ÷ 439] x 100 = -82.92%
Formula
Percentage change = [(75 - 439) / 439] x 100
Subtract the new number by the original number
75 - 439 = -364
-364 ÷ 439 = -0.8291571753986332
-0.8291571753986332 x 100 = -82.92%