85.27% is the change from 448 to 830
Calculation steps:
[( 830 - 448 ) ÷ 448] x 100 = 85.27%
Formula
Percentage change = [(830 - 448) / 448] x 100
Subtract the new number by the original number
830 - 448 = 382
382 ÷ 448 = 0.8526785714285714
0.8526785714285714 x 100 = 85.27%