-16.35% is the change from 520 to 435
Calculation steps:
[( 435 - 520 ) ÷ 520] x 100 = -16.35%
Formula
Percentage change = [(435 - 520) / 520] x 100
Subtract the new number by the original number
435 - 520 = -85
-85 ÷ 520 = -0.16346153846153846
-0.16346153846153846 x 100 = -16.35%