-69.93% is the change from 878 to 264
Calculation steps:
[( 264 - 878 ) ÷ 878] x 100 = -69.93%
Formula
Percentage change = [(264 - 878) / 878] x 100
Subtract the new number by the original number
264 - 878 = -614
-614 ÷ 878 = -0.6993166287015945
-0.6993166287015945 x 100 = -69.93%