-17.99% is the change from 606 to 497
Calculation steps:
[( 497 - 606 ) ÷ 606] x 100 = -17.99%
Formula
Percentage change = [(497 - 606) / 606] x 100
Subtract the new number by the original number
497 - 606 = -109
-109 ÷ 606 = -0.17986798679867988
-0.17986798679867988 x 100 = -17.99%