-66.06% is the change from 878 to 298
Calculation steps:
[( 298 - 878 ) ÷ 878] x 100 = -66.06%
Formula
Percentage change = [(298 - 878) / 878] x 100
Subtract the new number by the original number
298 - 878 = -580
-580 ÷ 878 = -0.6605922551252847
-0.6605922551252847 x 100 = -66.06%