-18.91% is the change from 497 to 403
Calculation steps:
[( 403 - 497 ) ÷ 497] x 100 = -18.91%
Formula
Percentage change = [(403 - 497) / 497] x 100
Subtract the new number by the original number
403 - 497 = -94
-94 ÷ 497 = -0.1891348088531187
-0.1891348088531187 x 100 = -18.91%