49.55% is the change from 220 to 329
Calculation steps:
[( 329 - 220 ) ÷ 220] x 100 = 49.55%
Formula
Percentage change = [(329 - 220) / 220] x 100
Subtract the new number by the original number
329 - 220 = 109
109 ÷ 220 = 0.4954545454545455
0.4954545454545455 x 100 = 49.55%