334.23% is the change from 149 to 647
Calculation steps:
[( 647 - 149 ) ÷ 149] x 100 = 334.23%
Formula
Percentage change = [(647 - 149) / 149] x 100
Subtract the new number by the original number
647 - 149 = 498
498 ÷ 149 = 3.3422818791946307
3.3422818791946307 x 100 = 334.23%