-60.39% is the change from 818 to 324
Calculation steps:
[( 324 - 818 ) ÷ 818] x 100 = -60.39%
Formula
Percentage change = [(324 - 818) / 818] x 100
Subtract the new number by the original number
324 - 818 = -494
-494 ÷ 818 = -0.6039119804400978
-0.6039119804400978 x 100 = -60.39%