196.3% is the change from 270 to 800
Calculation steps:
[( 800 - 270 ) ÷ 270] x 100 = 196.3%
Formula
Percentage change = [(800 - 270) / 270] x 100
Subtract the new number by the original number
800 - 270 = 530
530 ÷ 270 = 1.962962962962963
1.962962962962963 x 100 = 196.3%