-98.68% is the change from 530 to 7
Calculation steps:
[( 7 - 530 ) ÷ 530] x 100 = -98.68%
Formula
Percentage change = [(7 - 530) / 530] x 100
Subtract the new number by the original number
7 - 530 = -523
-523 ÷ 530 = -0.9867924528301887
-0.9867924528301887 x 100 = -98.68%