-36.27% is the change from 510 to 325
Calculation steps:
[( 325 - 510 ) ÷ 510] x 100 = -36.27%
Formula
Percentage change = [(325 - 510) / 510] x 100
Subtract the new number by the original number
325 - 510 = -185
-185 ÷ 510 = -0.3627450980392157
-0.3627450980392157 x 100 = -36.27%