-13.1% is the change from 1000 to 869
Calculation steps:
[( 869 - 1000 ) ÷ 1000] x 100 = -13.1%
Formula
Percentage change = [(869 - 1000) / 1000] x 100
Subtract the new number by the original number
869 - 1000 = -131
-131 ÷ 1000 = -0.131
-0.131 x 100 = -13.1%