302.63% is the change from 76 to 306
Calculation steps:
[( 306 - 76 ) ÷ 76] x 100 = 302.63%
Formula
Percentage change = [(306 - 76) / 76] x 100
Subtract the new number by the original number
306 - 76 = 230
230 ÷ 76 = 3.026315789473684
3.026315789473684 x 100 = 302.63%