199.26% is the change from 270 to 808
Calculation steps:
[( 808 - 270 ) ÷ 270] x 100 = 199.26%
Formula
Percentage change = [(808 - 270) / 270] x 100
Subtract the new number by the original number
808 - 270 = 538
538 ÷ 270 = 1.9925925925925927
1.9925925925925927 x 100 = 199.26%