48.87% is the change from 221 to 329
Calculation steps:
[( 329 - 221 ) ÷ 221] x 100 = 48.87%
Formula
Percentage change = [(329 - 221) / 221] x 100
Subtract the new number by the original number
329 - 221 = 108
108 ÷ 221 = 0.48868778280542985
0.48868778280542985 x 100 = 48.87%