-53.84% is the change from 847 to 391
Calculation steps:
[( 391 - 847 ) ÷ 847] x 100 = -53.84%
Formula
Percentage change = [(391 - 847) / 847] x 100
Subtract the new number by the original number
391 - 847 = -456
-456 ÷ 847 = -0.538370720188902
-0.538370720188902 x 100 = -53.84%