199.26% is the change from 271 to 811
Calculation steps:
[( 811 - 271 ) ÷ 271] x 100 = 199.26%
Formula
Percentage change = [(811 - 271) / 271] x 100
Subtract the new number by the original number
811 - 271 = 540
540 ÷ 271 = 1.992619926199262
1.992619926199262 x 100 = 199.26%