-24.29% is the change from 671 to 508
Calculation steps:
[( 508 - 671 ) ÷ 671] x 100 = -24.29%
Formula
Percentage change = [(508 - 671) / 671] x 100
Subtract the new number by the original number
508 - 671 = -163
-163 ÷ 671 = -0.2429210134128167
-0.2429210134128167 x 100 = -24.29%