-1.98% is the change from 859 to 842
Calculation steps:
[( 842 - 859 ) ÷ 859] x 100 = -1.98%
Formula
Percentage change = [(842 - 859) / 859] x 100
Subtract the new number by the original number
842 - 859 = -17
-17 ÷ 859 = -0.01979045401629802
-0.01979045401629802 x 100 = -1.98%