62.59% is the change from 270 to 439
Calculation steps:
[( 439 - 270 ) ÷ 270] x 100 = 62.59%
Formula
Percentage change = [(439 - 270) / 270] x 100
Subtract the new number by the original number
439 - 270 = 169
169 ÷ 270 = 0.6259259259259259
0.6259259259259259 x 100 = 62.59%