39.96% is the change from 478 to 669
Calculation steps:
[( 669 - 478 ) ÷ 478] x 100 = 39.96%
Formula
Percentage change = [(669 - 478) / 478] x 100
Subtract the new number by the original number
669 - 478 = 191
191 ÷ 478 = 0.399581589958159
0.399581589958159 x 100 = 39.96%