-57.03% is the change from 391 to 168
Calculation steps:
[( 168 - 391 ) ÷ 391] x 100 = -57.03%
Formula
Percentage change = [(168 - 391) / 391] x 100
Subtract the new number by the original number
168 - 391 = -223
-223 ÷ 391 = -0.5703324808184144
-0.5703324808184144 x 100 = -57.03%