180% is the change from 270 to 756
Calculation steps:
[( 756 - 270 ) ÷ 270] x 100 = 180%
Formula
Percentage change = [(756 - 270) / 270] x 100
Subtract the new number by the original number
756 - 270 = 486
486 ÷ 270 = 1.8
1.8 x 100 = 180%
Example