198.9% is the change from 273 to 816
Calculation steps:
[( 816 - 273 ) ÷ 273] x 100 = 198.9%
Formula
Percentage change = [(816 - 273) / 273] x 100
Subtract the new number by the original number
816 - 273 = 543
543 ÷ 273 = 1.989010989010989
1.989010989010989 x 100 = 198.9%