-34.28% is the change from 493 to 324
Calculation steps:
[( 324 - 493 ) ÷ 493] x 100 = -34.28%
Formula
Percentage change = [(324 - 493) / 493] x 100
Subtract the new number by the original number
324 - 493 = -169
-169 ÷ 493 = -0.34279918864097364
-0.34279918864097364 x 100 = -34.28%