-64.31% is the change from 919 to 328
Calculation steps:
[( 328 - 919 ) ÷ 919] x 100 = -64.31%
Formula
Percentage change = [(328 - 919) / 919] x 100
Subtract the new number by the original number
328 - 919 = -591
-591 ÷ 919 = -0.6430903155603918
-0.6430903155603918 x 100 = -64.31%