2.33% is the change from 857 to 877
Calculation steps:
[( 877 - 857 ) ÷ 857] x 100 = 2.33%
Formula
Percentage change = [(877 - 857) / 857] x 100
Subtract the new number by the original number
877 - 857 = 20
20 ÷ 857 = 0.023337222870478413
0.023337222870478413 x 100 = 2.33%