-63.18% is the change from 869 to 320
Calculation steps:
[( 320 - 869 ) ÷ 869] x 100 = -63.18%
Formula
Percentage change = [(320 - 869) / 869] x 100
Subtract the new number by the original number
320 - 869 = -549
-549 ÷ 869 = -0.6317606444188723
-0.6317606444188723 x 100 = -63.18%