-36.2% is the change from 511 to 326
Calculation steps:
[( 326 - 511 ) ÷ 511] x 100 = -36.2%
Formula
Percentage change = [(326 - 511) / 511] x 100
Subtract the new number by the original number
326 - 511 = -185
-185 ÷ 511 = -0.36203522504892366
-0.36203522504892366 x 100 = -36.2%