-26.15% is the change from 520 to 384
Calculation steps:
[( 384 - 520 ) ÷ 520] x 100 = -26.15%
Formula
Percentage change = [(384 - 520) / 520] x 100
Subtract the new number by the original number
384 - 520 = -136
-136 ÷ 520 = -0.26153846153846155
-0.26153846153846155 x 100 = -26.15%