-33.54% is the change from 817 to 543
Calculation steps:
[( 543 - 817 ) ÷ 817] x 100 = -33.54%
Formula
Percentage change = [(543 - 817) / 817] x 100
Subtract the new number by the original number
543 - 817 = -274
-274 ÷ 817 = -0.3353733170134639
-0.3353733170134639 x 100 = -33.54%