-26.38% is the change from 671 to 494
Calculation steps:
[( 494 - 671 ) ÷ 671] x 100 = -26.38%
Formula
Percentage change = [(494 - 671) / 671] x 100
Subtract the new number by the original number
494 - 671 = -177
-177 ÷ 671 = -0.2637853949329359
-0.2637853949329359 x 100 = -26.38%