38.91% is the change from 478 to 664
Calculation steps:
[( 664 - 478 ) ÷ 478] x 100 = 38.91%
Formula
Percentage change = [(664 - 478) / 478] x 100
Subtract the new number by the original number
664 - 478 = 186
186 ÷ 478 = 0.3891213389121339
0.3891213389121339 x 100 = 38.91%