121.85% is the change from 270 to 599
Calculation steps:
[( 599 - 270 ) ÷ 270] x 100 = 121.85%
Formula
Percentage change = [(599 - 270) / 270] x 100
Subtract the new number by the original number
599 - 270 = 329
329 ÷ 270 = 1.2185185185185186
1.2185185185185186 x 100 = 121.85%