57.14% is the change from 448 to 704
Calculation steps:
[( 704 - 448 ) ÷ 448] x 100 = 57.14%
Formula
Percentage change = [(704 - 448) / 448] x 100
Subtract the new number by the original number
704 - 448 = 256
256 ÷ 448 = 0.5714285714285714
0.5714285714285714 x 100 = 57.14%