52.56% is the change from 449 to 685
Calculation steps:
[( 685 - 449 ) ÷ 449] x 100 = 52.56%
Formula
Percentage change = [(685 - 449) / 449] x 100
Subtract the new number by the original number
685 - 449 = 236
236 ÷ 449 = 0.5256124721603563
0.5256124721603563 x 100 = 52.56%