-32.04% is the change from 671 to 456
Calculation steps:
[( 456 - 671 ) ÷ 671] x 100 = -32.04%
Formula
Percentage change = [(456 - 671) / 671] x 100
Subtract the new number by the original number
456 - 671 = -215
-215 ÷ 671 = -0.3204172876304024
-0.3204172876304024 x 100 = -32.04%