70.16% is the change from 449 to 764
Calculation steps:
[( 764 - 449 ) ÷ 449] x 100 = 70.16%
Formula
Percentage change = [(764 - 449) / 449] x 100
Subtract the new number by the original number
764 - 449 = 315
315 ÷ 449 = 0.7015590200445434
0.7015590200445434 x 100 = 70.16%