89.19% is the change from 259 to 490
Calculation steps:
[( 490 - 259 ) ÷ 259] x 100 = 89.19%
Formula
Percentage change = [(490 - 259) / 259] x 100
Subtract the new number by the original number
490 - 259 = 231
231 ÷ 259 = 0.8918918918918919
0.8918918918918919 x 100 = 89.19%