-52.26% is the change from 687 to 328
Calculation steps:
[( 328 - 687 ) ÷ 687] x 100 = -52.26%
Formula
Percentage change = [(328 - 687) / 687] x 100
Subtract the new number by the original number
328 - 687 = -359
-359 ÷ 687 = -0.5225618631732168
-0.5225618631732168 x 100 = -52.26%