-37.7% is the change from 671 to 418
Calculation steps:
[( 418 - 671 ) ÷ 671] x 100 = -37.7%
Formula
Percentage change = [(418 - 671) / 671] x 100
Subtract the new number by the original number
418 - 671 = -253
-253 ÷ 671 = -0.3770491803278688
-0.3770491803278688 x 100 = -37.7%