-20.58% is the change from 520 to 413
Calculation steps:
[( 413 - 520 ) ÷ 520] x 100 = -20.58%
Formula
Percentage change = [(413 - 520) / 520] x 100
Subtract the new number by the original number
413 - 520 = -107
-107 ÷ 520 = -0.20576923076923076
-0.20576923076923076 x 100 = -20.58%