-22.55% is the change from 878 to 680
Calculation steps:
[( 680 - 878 ) ÷ 878] x 100 = -22.55%
Formula
Percentage change = [(680 - 878) / 878] x 100
Subtract the new number by the original number
680 - 878 = -198
-198 ÷ 878 = -0.2255125284738041
-0.2255125284738041 x 100 = -22.55%