-83.61% is the change from 671 to 110
Calculation steps:
[( 110 - 671 ) ÷ 671] x 100 = -83.61%
Formula
Percentage change = [(110 - 671) / 671] x 100
Subtract the new number by the original number
110 - 671 = -561
-561 ÷ 671 = -0.8360655737704918
-0.8360655737704918 x 100 = -83.61%