154.83% is the change from 259 to 660
Calculation steps:
[( 660 - 259 ) ÷ 259] x 100 = 154.83%
Formula
Percentage change = [(660 - 259) / 259] x 100
Subtract the new number by the original number
660 - 259 = 401
401 ÷ 259 = 1.5482625482625483
1.5482625482625483 x 100 = 154.83%