-1.27% is the change from 869 to 858
Calculation steps:
[( 858 - 869 ) ÷ 869] x 100 = -1.27%
Formula
Percentage change = [(858 - 869) / 869] x 100
Subtract the new number by the original number
858 - 869 = -11
-11 ÷ 869 = -0.012658227848101266
-0.012658227848101266 x 100 = -1.27%