407.69% is the change from 13 to 66
Calculation steps:
[( 66 - 13 ) ÷ 13] x 100 = 407.69%
Formula
Percentage change = [(66 - 13) / 13] x 100
Subtract the new number by the original number
66 - 13 = 53
53 ÷ 13 = 4.076923076923077
4.076923076923077 x 100 = 407.69%