5306.67% is the change from 15 to 811
Calculation steps:
[( 811 - 15 ) ÷ 15] x 100 = 5306.67%
Formula
Percentage change = [(811 - 15) / 15] x 100
Subtract the new number by the original number
811 - 15 = 796
796 ÷ 15 = 53.06666666666667
53.06666666666667 x 100 = 5306.67%