-33.46% is the change from 816 to 543
Calculation steps:
[( 543 - 816 ) ÷ 816] x 100 = -33.46%
Formula
Percentage change = [(543 - 816) / 816] x 100
Subtract the new number by the original number
543 - 816 = -273
-273 ÷ 816 = -0.33455882352941174
-0.33455882352941174 x 100 = -33.46%