-79.95% is the change from 848 to 170
Calculation steps:
[( 170 - 848 ) ÷ 848] x 100 = -79.95%
Formula
Percentage change = [(170 - 848) / 848] x 100
Subtract the new number by the original number
170 - 848 = -678
-678 ÷ 848 = -0.7995283018867925
-0.7995283018867925 x 100 = -79.95%