66.41% is the change from 259 to 431
Calculation steps:
[( 431 - 259 ) ÷ 259] x 100 = 66.41%
Formula
Percentage change = [(431 - 259) / 259] x 100
Subtract the new number by the original number
431 - 259 = 172
172 ÷ 259 = 0.6640926640926641
0.6640926640926641 x 100 = 66.41%