-14.89% is the change from 497 to 423
Calculation steps:
[( 423 - 497 ) ÷ 497] x 100 = -14.89%
Formula
Percentage change = [(423 - 497) / 497] x 100
Subtract the new number by the original number
423 - 497 = -74
-74 ÷ 497 = -0.1488933601609658
-0.1488933601609658 x 100 = -14.89%