-33.81% is the change from 488 to 323
Calculation steps:
[( 323 - 488 ) ÷ 488] x 100 = -33.81%
Formula
Percentage change = [(323 - 488) / 488] x 100
Subtract the new number by the original number
323 - 488 = -165
-165 ÷ 488 = -0.33811475409836067
-0.33811475409836067 x 100 = -33.81%