378% is the change from 100 to 478
Calculation steps:
[( 478 - 100 ) ÷ 100] x 100 = 378%
Formula
Percentage change = [(478 - 100) / 100] x 100
Subtract the new number by the original number
478 - 100 = 378
378 ÷ 100 = 3.78
3.78 x 100 = 378%
Example