-9.52% is the change from 525 to 475
Calculation steps:
[( 475 - 525 ) ÷ 525] x 100 = -9.52%
Formula
Percentage change = [(475 - 525) / 525] x 100
Subtract the new number by the original number
475 - 525 = -50
-50 ÷ 525 = -0.09523809523809523
-0.09523809523809523 x 100 = -9.52%