66.59% is the change from 449 to 748
Calculation steps:
[( 748 - 449 ) ÷ 449] x 100 = 66.59%
Formula
Percentage change = [(748 - 449) / 449] x 100
Subtract the new number by the original number
748 - 449 = 299
299 ÷ 449 = 0.6659242761692651
0.6659242761692651 x 100 = 66.59%