-8.63% is the change from 892 to 815
Calculation steps:
[( 815 - 892 ) ÷ 892] x 100 = -8.63%
Formula
Percentage change = [(815 - 892) / 892] x 100
Subtract the new number by the original number
815 - 892 = -77
-77 ÷ 892 = -0.08632286995515695
-0.08632286995515695 x 100 = -8.63%