-39.48% is the change from 542 to 328
Calculation steps:
[( 328 - 542 ) ÷ 542] x 100 = -39.48%
Formula
Percentage change = [(328 - 542) / 542] x 100
Subtract the new number by the original number
328 - 542 = -214
-214 ÷ 542 = -0.3948339483394834
-0.3948339483394834 x 100 = -39.48%