31.8% is the change from 478 to 630
Calculation steps:
[( 630 - 478 ) ÷ 478] x 100 = 31.8%
Formula
Percentage change = [(630 - 478) / 478] x 100
Subtract the new number by the original number
630 - 478 = 152
152 ÷ 478 = 0.3179916317991632
0.3179916317991632 x 100 = 31.8%