-2.36% is the change from 931 to 909
Calculation steps:
[( 909 - 931 ) ÷ 931] x 100 = -2.36%
Formula
Percentage change = [(909 - 931) / 931] x 100
Subtract the new number by the original number
909 - 931 = -22
-22 ÷ 931 = -0.023630504833512353
-0.023630504833512353 x 100 = -2.36%