-5.51% is the change from 889 to 840
Calculation steps:
[( 840 - 889 ) ÷ 889] x 100 = -5.51%
Formula
Percentage change = [(840 - 889) / 889] x 100
Subtract the new number by the original number
840 - 889 = -49
-49 ÷ 889 = -0.05511811023622047
-0.05511811023622047 x 100 = -5.51%