-79.86% is the change from 844 to 170
Calculation steps:
[( 170 - 844 ) ÷ 844] x 100 = -79.86%
Formula
Percentage change = [(170 - 844) / 844] x 100
Subtract the new number by the original number
170 - 844 = -674
-674 ÷ 844 = -0.7985781990521327
-0.7985781990521327 x 100 = -79.86%