-39.59% is the change from 543 to 328
Calculation steps:
[( 328 - 543 ) ÷ 543] x 100 = -39.59%
Formula
Percentage change = [(328 - 543) / 543] x 100
Subtract the new number by the original number
328 - 543 = -215
-215 ÷ 543 = -0.39594843462246776
-0.39594843462246776 x 100 = -39.59%