-52.46% is the change from 671 to 319
Calculation steps:
[( 319 - 671 ) ÷ 671] x 100 = -52.46%
Formula
Percentage change = [(319 - 671) / 671] x 100
Subtract the new number by the original number
319 - 671 = -352
-352 ÷ 671 = -0.5245901639344263
-0.5245901639344263 x 100 = -52.46%