3725% is the change from 8 to 306
Calculation steps:
[( 306 - 8 ) ÷ 8] x 100 = 3725%
Formula
Percentage change = [(306 - 8) / 8] x 100
Subtract the new number by the original number
306 - 8 = 298
298 ÷ 8 = 37.25
37.25 x 100 = 3725%
Example