146.79% is the change from 280 to 691
Calculation steps:
[( 691 - 280 ) ÷ 280] x 100 = 146.79%
Formula
Percentage change = [(691 - 280) / 280] x 100
Subtract the new number by the original number
691 - 280 = 411
411 ÷ 280 = 1.4678571428571427
1.4678571428571427 x 100 = 146.79%