35.15% is the change from 478 to 646
Calculation steps:
[( 646 - 478 ) ÷ 478] x 100 = 35.15%
Formula
Percentage change = [(646 - 478) / 478] x 100
Subtract the new number by the original number
646 - 478 = 168
168 ÷ 478 = 0.3514644351464435
0.3514644351464435 x 100 = 35.15%