-77.69% is the change from 520 to 116
Calculation steps:
[( 116 - 520 ) ÷ 520] x 100 = -77.69%
Formula
Percentage change = [(116 - 520) / 520] x 100
Subtract the new number by the original number
116 - 520 = -404
-404 ÷ 520 = -0.7769230769230769
-0.7769230769230769 x 100 = -77.69%