69.5% is the change from 259 to 439
Calculation steps:
[( 439 - 259 ) ÷ 259] x 100 = 69.5%
Formula
Percentage change = [(439 - 259) / 259] x 100
Subtract the new number by the original number
439 - 259 = 180
180 ÷ 259 = 0.694980694980695
0.694980694980695 x 100 = 69.5%