-24.05% is the change from 869 to 660
Calculation steps:
[( 660 - 869 ) ÷ 869] x 100 = -24.05%
Formula
Percentage change = [(660 - 869) / 869] x 100
Subtract the new number by the original number
660 - 869 = -209
-209 ÷ 869 = -0.24050632911392406
-0.24050632911392406 x 100 = -24.05%