-25.93% is the change from 671 to 497
Calculation steps:
[( 497 - 671 ) ÷ 671] x 100 = -25.93%
Formula
Percentage change = [(497 - 671) / 671] x 100
Subtract the new number by the original number
497 - 671 = -174
-174 ÷ 671 = -0.2593144560357675
-0.2593144560357675 x 100 = -25.93%