-36.31% is the change from 515 to 328
Calculation steps:
[( 328 - 515 ) ÷ 515] x 100 = -36.31%
Formula
Percentage change = [(328 - 515) / 515] x 100
Subtract the new number by the original number
328 - 515 = -187
-187 ÷ 515 = -0.36310679611650487
-0.36310679611650487 x 100 = -36.31%