-58.42% is the change from 671 to 279
Calculation steps:
[( 279 - 671 ) ÷ 671] x 100 = -58.42%
Formula
Percentage change = [(279 - 671) / 671] x 100
Subtract the new number by the original number
279 - 671 = -392
-392 ÷ 671 = -0.5842026825633383
-0.5842026825633383 x 100 = -58.42%