-1.3% is the change from 923 to 911
Calculation steps:
[( 911 - 923 ) ÷ 923] x 100 = -1.3%
Formula
Percentage change = [(911 - 923) / 923] x 100
Subtract the new number by the original number
911 - 923 = -12
-12 ÷ 923 = -0.013001083423618635
-0.013001083423618635 x 100 = -1.3%