-11.86% is the change from 590 to 520
Calculation steps:
[( 520 - 590 ) ÷ 590] x 100 = -11.86%
Formula
Percentage change = [(520 - 590) / 590] x 100
Subtract the new number by the original number
520 - 590 = -70
-70 ÷ 590 = -0.11864406779661017
-0.11864406779661017 x 100 = -11.86%