52.9% is the change from 448 to 685
Calculation steps:
[( 685 - 448 ) ÷ 448] x 100 = 52.9%
Formula
Percentage change = [(685 - 448) / 448] x 100
Subtract the new number by the original number
685 - 448 = 237
237 ÷ 448 = 0.5290178571428571
0.5290178571428571 x 100 = 52.9%