305.5% is the change from 200 to 811
Calculation steps:
[( 811 - 200 ) ÷ 200] x 100 = 305.5%
Formula
Percentage change = [(811 - 200) / 200] x 100
Subtract the new number by the original number
811 - 200 = 611
611 ÷ 200 = 3.055
3.055 x 100 = 305.5%
Example