160.71% is the change from 280 to 730
Calculation steps:
[( 730 - 280 ) ÷ 280] x 100 = 160.71%
Formula
Percentage change = [(730 - 280) / 280] x 100
Subtract the new number by the original number
730 - 280 = 450
450 ÷ 280 = 1.6071428571428572
1.6071428571428572 x 100 = 160.71%