-0.38% is the change from 522 to 520
Calculation steps:
[( 520 - 522 ) ÷ 522] x 100 = -0.38%
Formula
Percentage change = [(520 - 522) / 522] x 100
Subtract the new number by the original number
520 - 522 = -2
-2 ÷ 522 = -0.0038314176245210726
-0.0038314176245210726 x 100 = -0.38%