-10% is the change from 520 to 468
Calculation steps:
[( 468 - 520 ) ÷ 520] x 100 = -10%
Formula
Percentage change = [(468 - 520) / 520] x 100
Subtract the new number by the original number
468 - 520 = -52
-52 ÷ 520 = -0.1
-0.1 x 100 = -10%
Example