478.57% is the change from 14 to 81
Calculation steps:
[( 81 - 14 ) ÷ 14] x 100 = 478.57%
Formula
Percentage change = [(81 - 14) / 14] x 100
Subtract the new number by the original number
81 - 14 = 67
67 ÷ 14 = 4.785714285714286
4.785714285714286 x 100 = 478.57%