-15.09% is the change from 497 to 422
Calculation steps:
[( 422 - 497 ) ÷ 497] x 100 = -15.09%
Formula
Percentage change = [(422 - 497) / 497] x 100
Subtract the new number by the original number
422 - 497 = -75
-75 ÷ 497 = -0.15090543259557343
-0.15090543259557343 x 100 = -15.09%