48.21% is the change from 448 to 664
Calculation steps:
[( 664 - 448 ) ÷ 448] x 100 = 48.21%
Formula
Percentage change = [(664 - 448) / 448] x 100
Subtract the new number by the original number
664 - 448 = 216
216 ÷ 448 = 0.48214285714285715
0.48214285714285715 x 100 = 48.21%