371.43% is the change from 14 to 66
Calculation steps:
[( 66 - 14 ) ÷ 14] x 100 = 371.43%
Formula
Percentage change = [(66 - 14) / 14] x 100
Subtract the new number by the original number
66 - 14 = 52
52 ÷ 14 = 3.7142857142857144
3.7142857142857144 x 100 = 371.43%