-63.06% is the change from 869 to 321
Calculation steps:
[( 321 - 869 ) ÷ 869] x 100 = -63.06%
Formula
Percentage change = [(321 - 869) / 869] x 100
Subtract the new number by the original number
321 - 869 = -548
-548 ÷ 869 = -0.6306098964326813
-0.6306098964326813 x 100 = -63.06%