2.8% is the change from 857 to 881
Calculation steps:
[( 881 - 857 ) ÷ 857] x 100 = 2.8%
Formula
Percentage change = [(881 - 857) / 857] x 100
Subtract the new number by the original number
881 - 857 = 24
24 ÷ 857 = 0.028004667444574097
0.028004667444574097 x 100 = 2.8%