88.64% is the change from 449 to 847
Calculation steps:
[( 847 - 449 ) ÷ 449] x 100 = 88.64%
Formula
Percentage change = [(847 - 449) / 449] x 100
Subtract the new number by the original number
847 - 449 = 398
398 ÷ 449 = 0.8864142538975501
0.8864142538975501 x 100 = 88.64%