-86.76% is the change from 589 to 78
Calculation steps:
[( 78 - 589 ) ÷ 589] x 100 = -86.76%
Formula
Percentage change = [(78 - 589) / 589] x 100
Subtract the new number by the original number
78 - 589 = -511
-511 ÷ 589 = -0.8675721561969439
-0.8675721561969439 x 100 = -86.76%