-52.01% is the change from 671 to 322
Calculation steps:
[( 322 - 671 ) ÷ 671] x 100 = -52.01%
Formula
Percentage change = [(322 - 671) / 671] x 100
Subtract the new number by the original number
322 - 671 = -349
-349 ÷ 671 = -0.5201192250372578
-0.5201192250372578 x 100 = -52.01%