-6.6% is the change from 530 to 495
Calculation steps:
[( 495 - 530 ) ÷ 530] x 100 = -6.6%
Formula
Percentage change = [(495 - 530) / 530] x 100
Subtract the new number by the original number
495 - 530 = -35
-35 ÷ 530 = -0.0660377358490566
-0.0660377358490566 x 100 = -6.6%