-79.72% is the change from 848 to 172
Calculation steps:
[( 172 - 848 ) ÷ 848] x 100 = -79.72%
Formula
Percentage change = [(172 - 848) / 848] x 100
Subtract the new number by the original number
172 - 848 = -676
-676 ÷ 848 = -0.7971698113207547
-0.7971698113207547 x 100 = -79.72%