3641.67% is the change from 12 to 449
Calculation steps:
[( 449 - 12 ) ÷ 12] x 100 = 3641.67%
Formula
Percentage change = [(449 - 12) / 12] x 100
Subtract the new number by the original number
449 - 12 = 437
437 ÷ 12 = 36.416666666666664
36.416666666666664 x 100 = 3641.67%