-9.21% is the change from 923 to 838
Calculation steps:
[( 838 - 923 ) ÷ 923] x 100 = -9.21%
Formula
Percentage change = [(838 - 923) / 923] x 100
Subtract the new number by the original number
838 - 923 = -85
-85 ÷ 923 = -0.09209100758396534
-0.09209100758396534 x 100 = -9.21%