-83.46% is the change from 671 to 111
Calculation steps:
[( 111 - 671 ) ÷ 671] x 100 = -83.46%
Formula
Percentage change = [(111 - 671) / 671] x 100
Subtract the new number by the original number
111 - 671 = -560
-560 ÷ 671 = -0.834575260804769
-0.834575260804769 x 100 = -83.46%