-80.09% is the change from 864 to 172
Calculation steps:
[( 172 - 864 ) ÷ 864] x 100 = -80.09%
Formula
Percentage change = [(172 - 864) / 864] x 100
Subtract the new number by the original number
172 - 864 = -692
-692 ÷ 864 = -0.8009259259259259
-0.8009259259259259 x 100 = -80.09%