343.84% is the change from 146 to 648
Calculation steps:
[( 648 - 146 ) ÷ 146] x 100 = 343.84%
Formula
Percentage change = [(648 - 146) / 146] x 100
Subtract the new number by the original number
648 - 146 = 502
502 ÷ 146 = 3.4383561643835616
3.4383561643835616 x 100 = 343.84%