3884.62% is the change from 13 to 518
Calculation steps:
[( 518 - 13 ) ÷ 13] x 100 = 3884.62%
Formula
Percentage change = [(518 - 13) / 13] x 100
Subtract the new number by the original number
518 - 13 = 505
505 ÷ 13 = 38.84615384615385
38.84615384615385 x 100 = 3884.62%