-1.89% is the change from 530 to 520
Calculation steps:
[( 520 - 530 ) ÷ 530] x 100 = -1.89%
Formula
Percentage change = [(520 - 530) / 530] x 100
Subtract the new number by the original number
520 - 530 = -10
-10 ÷ 530 = -0.018867924528301886
-0.018867924528301886 x 100 = -1.89%