278.57% is the change from 14 to 53
Calculation steps:
[( 53 - 14 ) ÷ 14] x 100 = 278.57%
Formula
Percentage change = [(53 - 14) / 14] x 100
Subtract the new number by the original number
53 - 14 = 39
39 ÷ 14 = 2.7857142857142856
2.7857142857142856 x 100 = 278.57%