40.17% is the change from 478 to 670
Calculation steps:
[( 670 - 478 ) ÷ 478] x 100 = 40.17%
Formula
Percentage change = [(670 - 478) / 478] x 100
Subtract the new number by the original number
670 - 478 = 192
192 ÷ 478 = 0.401673640167364
0.401673640167364 x 100 = 40.17%