102.71% is the change from 221 to 448
Calculation steps:
[( 448 - 221 ) ÷ 221] x 100 = 102.71%
Formula
Percentage change = [(448 - 221) / 221] x 100
Subtract the new number by the original number
448 - 221 = 227
227 ÷ 221 = 1.0271493212669682
1.0271493212669682 x 100 = 102.71%