-32.19% is the change from 671 to 455
Calculation steps:
[( 455 - 671 ) ÷ 671] x 100 = -32.19%
Formula
Percentage change = [(455 - 671) / 671] x 100
Subtract the new number by the original number
455 - 671 = -216
-216 ÷ 671 = -0.32190760059612517
-0.32190760059612517 x 100 = -32.19%