2.1% is the change from 859 to 877
Calculation steps:
[( 877 - 859 ) ÷ 859] x 100 = 2.1%
Formula
Percentage change = [(877 - 859) / 859] x 100
Subtract the new number by the original number
877 - 859 = 18
18 ÷ 859 = 0.020954598370197905
0.020954598370197905 x 100 = 2.1%