85.49% is the change from 448 to 831
Calculation steps:
[( 831 - 448 ) ÷ 448] x 100 = 85.49%
Formula
Percentage change = [(831 - 448) / 448] x 100
Subtract the new number by the original number
831 - 448 = 383
383 ÷ 448 = 0.8549107142857143
0.8549107142857143 x 100 = 85.49%