-66.97% is the change from 869 to 287
Calculation steps:
[( 287 - 869 ) ÷ 869] x 100 = -66.97%
Formula
Percentage change = [(287 - 869) / 869] x 100
Subtract the new number by the original number
287 - 869 = -582
-582 ÷ 869 = -0.669735327963176
-0.669735327963176 x 100 = -66.97%