-11.9% is the change from 521 to 459
Calculation steps:
[( 459 - 521 ) ÷ 521] x 100 = -11.9%
Formula
Percentage change = [(459 - 521) / 521] x 100
Subtract the new number by the original number
459 - 521 = -62
-62 ÷ 521 = -0.11900191938579655
-0.11900191938579655 x 100 = -11.9%