-10.83% is the change from 914 to 815
Calculation steps:
[( 815 - 914 ) ÷ 914] x 100 = -10.83%
Formula
Percentage change = [(815 - 914) / 914] x 100
Subtract the new number by the original number
815 - 914 = -99
-99 ÷ 914 = -0.10831509846827134
-0.10831509846827134 x 100 = -10.83%