-39.67% is the change from 542 to 327
Calculation steps:
[( 327 - 542 ) ÷ 542] x 100 = -39.67%
Formula
Percentage change = [(327 - 542) / 542] x 100
Subtract the new number by the original number
327 - 542 = -215
-215 ÷ 542 = -0.3966789667896679
-0.3966789667896679 x 100 = -39.67%