-43.67% is the change from 671 to 378
Calculation steps:
[( 378 - 671 ) ÷ 671] x 100 = -43.67%
Formula
Percentage change = [(378 - 671) / 671] x 100
Subtract the new number by the original number
378 - 671 = -293
-293 ÷ 671 = -0.4366616989567809
-0.4366616989567809 x 100 = -43.67%