-26.53% is the change from 671 to 493
Calculation steps:
[( 493 - 671 ) ÷ 671] x 100 = -26.53%
Formula
Percentage change = [(493 - 671) / 671] x 100
Subtract the new number by the original number
493 - 671 = -178
-178 ÷ 671 = -0.26527570789865873
-0.26527570789865873 x 100 = -26.53%