-0.11% is the change from 922 to 921
Calculation steps:
[( 921 - 922 ) ÷ 922] x 100 = -0.11%
Formula
Percentage change = [(921 - 922) / 922] x 100
Subtract the new number by the original number
921 - 922 = -1
-1 ÷ 922 = -0.0010845986984815619
-0.0010845986984815619 x 100 = -0.11%