-1.24% is the change from 889 to 878
Calculation steps:
[( 878 - 889 ) ÷ 889] x 100 = -1.24%
Formula
Percentage change = [(878 - 889) / 889] x 100
Subtract the new number by the original number
878 - 889 = -11
-11 ÷ 889 = -0.012373453318335208
-0.012373453318335208 x 100 = -1.24%