27.92% is the change from 240 to 307
Calculation steps:
[( 307 - 240 ) ÷ 240] x 100 = 27.92%
Formula
Percentage change = [(307 - 240) / 240] x 100
Subtract the new number by the original number
307 - 240 = 67
67 ÷ 240 = 0.2791666666666667
0.2791666666666667 x 100 = 27.92%
Example