87.05% is the change from 448 to 838
Calculation steps:
[( 838 - 448 ) ÷ 448] x 100 = 87.05%
Formula
Percentage change = [(838 - 448) / 448] x 100
Subtract the new number by the original number
838 - 448 = 390
390 ÷ 448 = 0.8705357142857143
0.8705357142857143 x 100 = 87.05%