-80.32% is the change from 864 to 170
Calculation steps:
[( 170 - 864 ) ÷ 864] x 100 = -80.32%
Formula
Percentage change = [(170 - 864) / 864] x 100
Subtract the new number by the original number
170 - 864 = -694
-694 ÷ 864 = -0.8032407407407407
-0.8032407407407407 x 100 = -80.32%