5413.33% is the change from 15 to 827
Calculation steps:
[( 827 - 15 ) ÷ 15] x 100 = 5413.33%
Formula
Percentage change = [(827 - 15) / 15] x 100
Subtract the new number by the original number
827 - 15 = 812
812 ÷ 15 = 54.13333333333333
54.13333333333333 x 100 = 5413.33%