-19.09% is the change from 529 to 428
Calculation steps:
[( 428 - 529 ) ÷ 529] x 100 = -19.09%
Formula
Percentage change = [(428 - 529) / 529] x 100
Subtract the new number by the original number
428 - 529 = -101
-101 ÷ 529 = -0.19092627599243855
-0.19092627599243855 x 100 = -19.09%