177.78% is the change from 270 to 750
Calculation steps:
[( 750 - 270 ) ÷ 270] x 100 = 177.78%
Formula
Percentage change = [(750 - 270) / 270] x 100
Subtract the new number by the original number
750 - 270 = 480
480 ÷ 270 = 1.7777777777777777
1.7777777777777777 x 100 = 177.78%