161.07% is the change from 280 to 731
Calculation steps:
[( 731 - 280 ) ÷ 280] x 100 = 161.07%
Formula
Percentage change = [(731 - 280) / 280] x 100
Subtract the new number by the original number
731 - 280 = 451
451 ÷ 280 = 1.6107142857142858
1.6107142857142858 x 100 = 161.07%