166.3% is the change from 270 to 719
Calculation steps:
[( 719 - 270 ) ÷ 270] x 100 = 166.3%
Formula
Percentage change = [(719 - 270) / 270] x 100
Subtract the new number by the original number
719 - 270 = 449
449 ÷ 270 = 1.662962962962963
1.662962962962963 x 100 = 166.3%