-4.35% is the change from 529 to 506
Calculation steps:
[( 506 - 529 ) ÷ 529] x 100 = -4.35%
Formula
Percentage change = [(506 - 529) / 529] x 100
Subtract the new number by the original number
506 - 529 = -23
-23 ÷ 529 = -0.043478260869565216
-0.043478260869565216 x 100 = -4.35%