-36.08% is the change from 510 to 326
Calculation steps:
[( 326 - 510 ) ÷ 510] x 100 = -36.08%
Formula
Percentage change = [(326 - 510) / 510] x 100
Subtract the new number by the original number
326 - 510 = -184
-184 ÷ 510 = -0.3607843137254902
-0.3607843137254902 x 100 = -36.08%