-57.29% is the change from 768 to 328
Calculation steps:
[( 328 - 768 ) ÷ 768] x 100 = -57.29%
Formula
Percentage change = [(328 - 768) / 768] x 100
Subtract the new number by the original number
328 - 768 = -440
-440 ÷ 768 = -0.5729166666666666
-0.5729166666666666 x 100 = -57.29%