-37.64% is the change from 518 to 323
Calculation steps:
[( 323 - 518 ) ÷ 518] x 100 = -37.64%
Formula
Percentage change = [(323 - 518) / 518] x 100
Subtract the new number by the original number
323 - 518 = -195
-195 ÷ 518 = -0.3764478764478765
-0.3764478764478765 x 100 = -37.64%