-47.84% is the change from 671 to 350
Calculation steps:
[( 350 - 671 ) ÷ 671] x 100 = -47.84%
Formula
Percentage change = [(350 - 671) / 671] x 100
Subtract the new number by the original number
350 - 671 = -321
-321 ÷ 671 = -0.4783904619970194
-0.4783904619970194 x 100 = -47.84%