-34.81% is the change from 497 to 324
Calculation steps:
[( 324 - 497 ) ÷ 497] x 100 = -34.81%
Formula
Percentage change = [(324 - 497) / 497] x 100
Subtract the new number by the original number
324 - 497 = -173
-173 ÷ 497 = -0.34808853118712274
-0.34808853118712274 x 100 = -34.81%