71.71% is the change from 449 to 771
Calculation steps:
[( 771 - 449 ) ÷ 449] x 100 = 71.71%
Formula
Percentage change = [(771 - 449) / 449] x 100
Subtract the new number by the original number
771 - 449 = 322
322 ÷ 449 = 0.7171492204899778
0.7171492204899778 x 100 = 71.71%