-13.88% is the change from 497 to 428
Calculation steps:
[( 428 - 497 ) ÷ 497] x 100 = -13.88%
Formula
Percentage change = [(428 - 497) / 497] x 100
Subtract the new number by the original number
428 - 497 = -69
-69 ÷ 497 = -0.13883299798792756
-0.13883299798792756 x 100 = -13.88%