-75.63% is the change from 878 to 214
Calculation steps:
[( 214 - 878 ) ÷ 878] x 100 = -75.63%
Formula
Percentage change = [(214 - 878) / 878] x 100
Subtract the new number by the original number
214 - 878 = -664
-664 ÷ 878 = -0.7562642369020501
-0.7562642369020501 x 100 = -75.63%