43.53% is the change from 448 to 643
Calculation steps:
[( 643 - 448 ) ÷ 448] x 100 = 43.53%
Formula
Percentage change = [(643 - 448) / 448] x 100
Subtract the new number by the original number
643 - 448 = 195
195 ÷ 448 = 0.43526785714285715
0.43526785714285715 x 100 = 43.53%