78.17% is the change from 449 to 800
Calculation steps:
[( 800 - 449 ) ÷ 449] x 100 = 78.17%
Formula
Percentage change = [(800 - 449) / 449] x 100
Subtract the new number by the original number
800 - 449 = 351
351 ÷ 449 = 0.7817371937639198
0.7817371937639198 x 100 = 78.17%