114.29% is the change from 14 to 30
Calculation steps:
[( 30 - 14 ) ÷ 14] x 100 = 114.29%
Formula
Percentage change = [(30 - 14) / 14] x 100
Subtract the new number by the original number
30 - 14 = 16
16 ÷ 14 = 1.1428571428571428
1.1428571428571428 x 100 = 114.29%