-99.65% is the change from 869 to 3
Calculation steps:
[( 3 - 869 ) ÷ 869] x 100 = -99.65%
Formula
Percentage change = [(3 - 869) / 869] x 100
Subtract the new number by the original number
3 - 869 = -866
-866 ÷ 869 = -0.996547756041427
-0.996547756041427 x 100 = -99.65%