-1.38% is the change from 869 to 857
Calculation steps:
[( 857 - 869 ) ÷ 869] x 100 = -1.38%
Formula
Percentage change = [(857 - 869) / 869] x 100
Subtract the new number by the original number
857 - 869 = -12
-12 ÷ 869 = -0.01380897583429229
-0.01380897583429229 x 100 = -1.38%