6330.77% is the change from 13 to 836
Calculation steps:
[( 836 - 13 ) ÷ 13] x 100 = 6330.77%
Formula
Percentage change = [(836 - 13) / 13] x 100
Subtract the new number by the original number
836 - 13 = 823
823 ÷ 13 = 63.30769230769231
63.30769230769231 x 100 = 6330.77%