-2.01% is the change from 897 to 879
Calculation steps:
[( 879 - 897 ) ÷ 897] x 100 = -2.01%
Formula
Percentage change = [(879 - 897) / 897] x 100
Subtract the new number by the original number
879 - 897 = -18
-18 ÷ 897 = -0.020066889632107024
-0.020066889632107024 x 100 = -2.01%