-31.15% is the change from 671 to 462
Calculation steps:
[( 462 - 671 ) ÷ 671] x 100 = -31.15%
Formula
Percentage change = [(462 - 671) / 671] x 100
Subtract the new number by the original number
462 - 671 = -209
-209 ÷ 671 = -0.3114754098360656
-0.3114754098360656 x 100 = -31.15%