104% is the change from 150 to 306
Calculation steps:
[( 306 - 150 ) ÷ 150] x 100 = 104%
Formula
Percentage change = [(306 - 150) / 150] x 100
Subtract the new number by the original number
306 - 150 = 156
156 ÷ 150 = 1.04
1.04 x 100 = 104%
Example