-29.86% is the change from 730 to 512
Calculation steps:
[( 512 - 730 ) ÷ 730] x 100 = -29.86%
Formula
Percentage change = [(512 - 730) / 730] x 100
Subtract the new number by the original number
512 - 730 = -218
-218 ÷ 730 = -0.29863013698630136
-0.29863013698630136 x 100 = -29.86%