-18.86% is the change from 525 to 426
Calculation steps:
[( 426 - 525 ) ÷ 525] x 100 = -18.86%
Formula
Percentage change = [(426 - 525) / 525] x 100
Subtract the new number by the original number
426 - 525 = -99
-99 ÷ 525 = -0.18857142857142858
-0.18857142857142858 x 100 = -18.86%