91.89% is the change from 259 to 497
Calculation steps:
[( 497 - 259 ) ÷ 259] x 100 = 91.89%
Formula
Percentage change = [(497 - 259) / 259] x 100
Subtract the new number by the original number
497 - 259 = 238
238 ÷ 259 = 0.918918918918919
0.918918918918919 x 100 = 91.89%