34.03% is the change from 479 to 642
Calculation steps:
[( 642 - 479 ) ÷ 479] x 100 = 34.03%
Formula
Percentage change = [(642 - 479) / 479] x 100
Subtract the new number by the original number
642 - 479 = 163
163 ÷ 479 = 0.34029227557411273
0.34029227557411273 x 100 = 34.03%