-47.99% is the change from 671 to 349
Calculation steps:
[( 349 - 671 ) ÷ 671] x 100 = -47.99%
Formula
Percentage change = [(349 - 671) / 671] x 100
Subtract the new number by the original number
349 - 671 = -322
-322 ÷ 671 = -0.4798807749627422
-0.4798807749627422 x 100 = -47.99%