-41.58% is the change from 671 to 392
Calculation steps:
[( 392 - 671 ) ÷ 671] x 100 = -41.58%
Formula
Percentage change = [(392 - 671) / 671] x 100
Subtract the new number by the original number
392 - 671 = -279
-279 ÷ 671 = -0.4157973174366617
-0.4157973174366617 x 100 = -41.58%