-36.04% is the change from 505 to 323
Calculation steps:
[( 323 - 505 ) ÷ 505] x 100 = -36.04%
Formula
Percentage change = [(323 - 505) / 505] x 100
Subtract the new number by the original number
323 - 505 = -182
-182 ÷ 505 = -0.3603960396039604
-0.3603960396039604 x 100 = -36.04%