-2.1% is the change from 859 to 841
Calculation steps:
[( 841 - 859 ) ÷ 859] x 100 = -2.1%
Formula
Percentage change = [(841 - 859) / 859] x 100
Subtract the new number by the original number
841 - 859 = -18
-18 ÷ 859 = -0.020954598370197905
-0.020954598370197905 x 100 = -2.1%