136.29% is the change from 259 to 612
Calculation steps:
[( 612 - 259 ) ÷ 259] x 100 = 136.29%
Formula
Percentage change = [(612 - 259) / 259] x 100
Subtract the new number by the original number
612 - 259 = 353
353 ÷ 259 = 1.3629343629343629
1.3629343629343629 x 100 = 136.29%