-86.08% is the change from 869 to 121
Calculation steps:
[( 121 - 869 ) ÷ 869] x 100 = -86.08%
Formula
Percentage change = [(121 - 869) / 869] x 100
Subtract the new number by the original number
121 - 869 = -748
-748 ÷ 869 = -0.8607594936708861
-0.8607594936708861 x 100 = -86.08%