-10.14% is the change from 907 to 815
Calculation steps:
[( 815 - 907 ) ÷ 907] x 100 = -10.14%
Formula
Percentage change = [(815 - 907) / 907] x 100
Subtract the new number by the original number
815 - 907 = -92
-92 ÷ 907 = -0.10143329658213891
-0.10143329658213891 x 100 = -10.14%