-80.68% is the change from 880 to 170
Calculation steps:
[( 170 - 880 ) ÷ 880] x 100 = -80.68%
Formula
Percentage change = [(170 - 880) / 880] x 100
Subtract the new number by the original number
170 - 880 = -710
-710 ÷ 880 = -0.8068181818181818
-0.8068181818181818 x 100 = -80.68%