-81.02% is the change from 864 to 164
Calculation steps:
[( 164 - 864 ) ÷ 864] x 100 = -81.02%
Formula
Percentage change = [(164 - 864) / 864] x 100
Subtract the new number by the original number
164 - 864 = -700
-700 ÷ 864 = -0.8101851851851852
-0.8101851851851852 x 100 = -81.02%