-33.58% is the change from 816 to 542
Calculation steps:
[( 542 - 816 ) ÷ 816] x 100 = -33.58%
Formula
Percentage change = [(542 - 816) / 816] x 100
Subtract the new number by the original number
542 - 816 = -274
-274 ÷ 816 = -0.33578431372549017
-0.33578431372549017 x 100 = -33.58%