240% is the change from 270 to 918
Calculation steps:
[( 918 - 270 ) ÷ 270] x 100 = 240%
Formula
Percentage change = [(918 - 270) / 270] x 100
Subtract the new number by the original number
918 - 270 = 648
648 ÷ 270 = 2.4
2.4 x 100 = 240%
Example