-33.61% is the change from 488 to 324
Calculation steps:
[( 324 - 488 ) ÷ 488] x 100 = -33.61%
Formula
Percentage change = [(324 - 488) / 488] x 100
Subtract the new number by the original number
324 - 488 = -164
-164 ÷ 488 = -0.3360655737704918
-0.3360655737704918 x 100 = -33.61%