310.74% is the change from 149 to 612
Calculation steps:
[( 612 - 149 ) ÷ 149] x 100 = 310.74%
Formula
Percentage change = [(612 - 149) / 149] x 100
Subtract the new number by the original number
612 - 149 = 463
463 ÷ 149 = 3.1073825503355703
3.1073825503355703 x 100 = 310.74%