2961.54% is the change from 13 to 398
Calculation steps:
[( 398 - 13 ) ÷ 13] x 100 = 2961.54%
Formula
Percentage change = [(398 - 13) / 13] x 100
Subtract the new number by the original number
398 - 13 = 385
385 ÷ 13 = 29.615384615384617
29.615384615384617 x 100 = 2961.54%