21.85% is the change from 270 to 329
Calculation steps:
[( 329 - 270 ) ÷ 270] x 100 = 21.85%
Formula
Percentage change = [(329 - 270) / 270] x 100
Subtract the new number by the original number
329 - 270 = 59
59 ÷ 270 = 0.21851851851851853
0.21851851851851853 x 100 = 21.85%