-77.47% is the change from 870 to 196
Calculation steps:
[( 196 - 870 ) ÷ 870] x 100 = -77.47%
Formula
Percentage change = [(196 - 870) / 870] x 100
Subtract the new number by the original number
196 - 870 = -674
-674 ÷ 870 = -0.774712643678161
-0.774712643678161 x 100 = -77.47%