313.51% is the change from 148 to 612
Calculation steps:
[( 612 - 148 ) ÷ 148] x 100 = 313.51%
Formula
Percentage change = [(612 - 148) / 148] x 100
Subtract the new number by the original number
612 - 148 = 464
464 ÷ 148 = 3.135135135135135
3.135135135135135 x 100 = 313.51%