268.64% is the change from 220 to 811
Calculation steps:
[( 811 - 220 ) ÷ 220] x 100 = 268.64%
Formula
Percentage change = [(811 - 220) / 220] x 100
Subtract the new number by the original number
811 - 220 = 591
591 ÷ 220 = 2.6863636363636365
2.6863636363636365 x 100 = 268.64%