-35.62% is the change from 511 to 329
Calculation steps:
[( 329 - 511 ) ÷ 511] x 100 = -35.62%
Formula
Percentage change = [(329 - 511) / 511] x 100
Subtract the new number by the original number
329 - 511 = -182
-182 ÷ 511 = -0.3561643835616438
-0.3561643835616438 x 100 = -35.62%