-84.83% is the change from 870 to 132
Calculation steps:
[( 132 - 870 ) ÷ 870] x 100 = -84.83%
Formula
Percentage change = [(132 - 870) / 870] x 100
Subtract the new number by the original number
132 - 870 = -738
-738 ÷ 870 = -0.8482758620689655
-0.8482758620689655 x 100 = -84.83%