691.26% is the change from 103 to 815
Calculation steps:
[( 815 - 103 ) ÷ 103] x 100 = 691.26%
Formula
Percentage change = [(815 - 103) / 103] x 100
Subtract the new number by the original number
815 - 103 = 712
712 ÷ 103 = 6.912621359223301
6.912621359223301 x 100 = 691.26%