-8.94% is the change from 671 to 611
Calculation steps:
[( 611 - 671 ) ÷ 671] x 100 = -8.94%
Formula
Percentage change = [(611 - 671) / 671] x 100
Subtract the new number by the original number
611 - 671 = -60
-60 ÷ 671 = -0.08941877794336811
-0.08941877794336811 x 100 = -8.94%