-0.55% is the change from 911 to 906
Calculation steps:
[( 906 - 911 ) ÷ 911] x 100 = -0.55%
Formula
Percentage change = [(906 - 911) / 911] x 100
Subtract the new number by the original number
906 - 911 = -5
-5 ÷ 911 = -0.005488474204171241
-0.005488474204171241 x 100 = -0.55%