-2.31% is the change from 911 to 890
Calculation steps:
[( 890 - 911 ) ÷ 911] x 100 = -2.31%
Formula
Percentage change = [(890 - 911) / 911] x 100
Subtract the new number by the original number
890 - 911 = -21
-21 ÷ 911 = -0.02305159165751921
-0.02305159165751921 x 100 = -2.31%