-27.4% is the change from 730 to 530
Calculation steps:
[( 530 - 730 ) ÷ 730] x 100 = -27.4%
Formula
Percentage change = [(530 - 730) / 730] x 100
Subtract the new number by the original number
530 - 730 = -200
-200 ÷ 730 = -0.273972602739726
-0.273972602739726 x 100 = -27.4%