-8.37% is the change from 992 to 909
Calculation steps:
[( 909 - 992 ) ÷ 992] x 100 = -8.37%
Formula
Percentage change = [(909 - 992) / 992] x 100
Subtract the new number by the original number
909 - 992 = -83
-83 ÷ 992 = -0.08366935483870967
-0.08366935483870967 x 100 = -8.37%