2.85% is the change from 842 to 866
Calculation steps:
[( 866 - 842 ) ÷ 842] x 100 = 2.85%
Formula
Percentage change = [(866 - 842) / 842] x 100
Subtract the new number by the original number
866 - 842 = 24
24 ÷ 842 = 0.028503562945368172
0.028503562945368172 x 100 = 2.85%