84.19% is the change from 449 to 827
Calculation steps:
[( 827 - 449 ) ÷ 449] x 100 = 84.19%
Formula
Percentage change = [(827 - 449) / 449] x 100
Subtract the new number by the original number
827 - 449 = 378
378 ÷ 449 = 0.8418708240534521
0.8418708240534521 x 100 = 84.19%