6430.77% is the change from 13 to 849
Calculation steps:
[( 849 - 13 ) ÷ 13] x 100 = 6430.77%
Formula
Percentage change = [(849 - 13) / 13] x 100
Subtract the new number by the original number
849 - 13 = 836
836 ÷ 13 = 64.3076923076923
64.3076923076923 x 100 = 6430.77%