-32.39% is the change from 497 to 336
Calculation steps:
[( 336 - 497 ) ÷ 497] x 100 = -32.39%
Formula
Percentage change = [(336 - 497) / 497] x 100
Subtract the new number by the original number
336 - 497 = -161
-161 ÷ 497 = -0.323943661971831
-0.323943661971831 x 100 = -32.39%