-20.83% is the change from 869 to 688
Calculation steps:
[( 688 - 869 ) ÷ 869] x 100 = -20.83%
Formula
Percentage change = [(688 - 869) / 869] x 100
Subtract the new number by the original number
688 - 869 = -181
-181 ÷ 869 = -0.20828538550057538
-0.20828538550057538 x 100 = -20.83%