-17.85% is the change from 605 to 497
Calculation steps:
[( 497 - 605 ) ÷ 605] x 100 = -17.85%
Formula
Percentage change = [(497 - 605) / 605] x 100
Subtract the new number by the original number
497 - 605 = -108
-108 ÷ 605 = -0.17851239669421487
-0.17851239669421487 x 100 = -17.85%