149.59% is the change from 123 to 307
Calculation steps:
[( 307 - 123 ) ÷ 123] x 100 = 149.59%
Formula
Percentage change = [(307 - 123) / 123] x 100
Subtract the new number by the original number
307 - 123 = 184
184 ÷ 123 = 1.4959349593495934
1.4959349593495934 x 100 = 149.59%