-86.91% is the change from 596 to 78
Calculation steps:
[( 78 - 596 ) ÷ 596] x 100 = -86.91%
Formula
Percentage change = [(78 - 596) / 596] x 100
Subtract the new number by the original number
78 - 596 = -518
-518 ÷ 596 = -0.8691275167785235
-0.8691275167785235 x 100 = -86.91%