-42.47% is the change from 671 to 386
Calculation steps:
[( 386 - 671 ) ÷ 671] x 100 = -42.47%
Formula
Percentage change = [(386 - 671) / 671] x 100
Subtract the new number by the original number
386 - 671 = -285
-285 ÷ 671 = -0.4247391952309985
-0.4247391952309985 x 100 = -42.47%