-4.72% is the change from 530 to 505
Calculation steps:
[( 505 - 530 ) ÷ 530] x 100 = -4.72%
Formula
Percentage change = [(505 - 530) / 530] x 100
Subtract the new number by the original number
505 - 530 = -25
-25 ÷ 530 = -0.04716981132075472
-0.04716981132075472 x 100 = -4.72%