-1.9% is the change from 897 to 880
Calculation steps:
[( 880 - 897 ) ÷ 897] x 100 = -1.9%
Formula
Percentage change = [(880 - 897) / 897] x 100
Subtract the new number by the original number
880 - 897 = -17
-17 ÷ 897 = -0.0189520624303233
-0.0189520624303233 x 100 = -1.9%