5473.33% is the change from 15 to 836
Calculation steps:
[( 836 - 15 ) ÷ 15] x 100 = 5473.33%
Formula
Percentage change = [(836 - 15) / 15] x 100
Subtract the new number by the original number
836 - 15 = 821
821 ÷ 15 = 54.733333333333334
54.733333333333334 x 100 = 5473.33%