6284.62% is the change from 13 to 830
Calculation steps:
[( 830 - 13 ) ÷ 13] x 100 = 6284.62%
Formula
Percentage change = [(830 - 13) / 13] x 100
Subtract the new number by the original number
830 - 13 = 817
817 ÷ 13 = 62.84615384615385
62.84615384615385 x 100 = 6284.62%