139.38% is the change from 259 to 620
Calculation steps:
[( 620 - 259 ) ÷ 259] x 100 = 139.38%
Formula
Percentage change = [(620 - 259) / 259] x 100
Subtract the new number by the original number
620 - 259 = 361
361 ÷ 259 = 1.393822393822394
1.393822393822394 x 100 = 139.38%