-35.81% is the change from 497 to 319
Calculation steps:
[( 319 - 497 ) ÷ 497] x 100 = -35.81%
Formula
Percentage change = [(319 - 497) / 497] x 100
Subtract the new number by the original number
319 - 497 = -178
-178 ÷ 497 = -0.358148893360161
-0.358148893360161 x 100 = -35.81%
Example