6546.15% is the change from 13 to 864
Calculation steps:
[( 864 - 13 ) ÷ 13] x 100 = 6546.15%
Formula
Percentage change = [(864 - 13) / 13] x 100
Subtract the new number by the original number
864 - 13 = 851
851 ÷ 13 = 65.46153846153847
65.46153846153847 x 100 = 6546.15%