-53.65% is the change from 671 to 311
Calculation steps:
[( 311 - 671 ) ÷ 671] x 100 = -53.65%
Formula
Percentage change = [(311 - 671) / 671] x 100
Subtract the new number by the original number
311 - 671 = -360
-360 ÷ 671 = -0.5365126676602087
-0.5365126676602087 x 100 = -53.65%