88.2% is the change from 449 to 845
Calculation steps:
[( 845 - 449 ) ÷ 449] x 100 = 88.2%
Formula
Percentage change = [(845 - 449) / 449] x 100
Subtract the new number by the original number
845 - 449 = 396
396 ÷ 449 = 0.8819599109131403
0.8819599109131403 x 100 = 88.2%