-33.62% is the change from 818 to 543
Calculation steps:
[( 543 - 818 ) ÷ 818] x 100 = -33.62%
Formula
Percentage change = [(543 - 818) / 818] x 100
Subtract the new number by the original number
543 - 818 = -275
-275 ÷ 818 = -0.33618581907090467
-0.33618581907090467 x 100 = -33.62%