63.32% is the change from 259 to 423
Calculation steps:
[( 423 - 259 ) ÷ 259] x 100 = 63.32%
Formula
Percentage change = [(423 - 259) / 259] x 100
Subtract the new number by the original number
423 - 259 = 164
164 ÷ 259 = 0.6332046332046332
0.6332046332046332 x 100 = 63.32%