200.73% is the change from 273 to 821
Calculation steps:
[( 821 - 273 ) ÷ 273] x 100 = 200.73%
Formula
Percentage change = [(821 - 273) / 273] x 100
Subtract the new number by the original number
821 - 273 = 548
548 ÷ 273 = 2.0073260073260073
2.0073260073260073 x 100 = 200.73%