227.4% is the change from 146 to 478
Calculation steps:
[( 478 - 146 ) ÷ 146] x 100 = 227.4%
Formula
Percentage change = [(478 - 146) / 146] x 100
Subtract the new number by the original number
478 - 146 = 332
332 ÷ 146 = 2.2739726027397262
2.2739726027397262 x 100 = 227.4%