-36.56% is the change from 517 to 328
Calculation steps:
[( 328 - 517 ) ÷ 517] x 100 = -36.56%
Formula
Percentage change = [(328 - 517) / 517] x 100
Subtract the new number by the original number
328 - 517 = -189
-189 ÷ 517 = -0.3655705996131528
-0.3655705996131528 x 100 = -36.56%