-64.12% is the change from 878 to 315
Calculation steps:
[( 315 - 878 ) ÷ 878] x 100 = -64.12%
Formula
Percentage change = [(315 - 878) / 878] x 100
Subtract the new number by the original number
315 - 878 = -563
-563 ÷ 878 = -0.6412300683371298
-0.6412300683371298 x 100 = -64.12%