57.54% is the change from 285 to 449
Calculation steps:
[( 449 - 285 ) ÷ 285] x 100 = 57.54%
Formula
Percentage change = [(449 - 285) / 285] x 100
Subtract the new number by the original number
449 - 285 = 164
164 ÷ 285 = 0.5754385964912281
0.5754385964912281 x 100 = 57.54%