-88.05% is the change from 870 to 104
Calculation steps:
[( 104 - 870 ) ÷ 870] x 100 = -88.05%
Formula
Percentage change = [(104 - 870) / 870] x 100
Subtract the new number by the original number
104 - 870 = -766
-766 ÷ 870 = -0.8804597701149425
-0.8804597701149425 x 100 = -88.05%