601.56% is the change from 64 to 449
Calculation steps:
[( 449 - 64 ) ÷ 64] x 100 = 601.56%
Formula
Percentage change = [(449 - 64) / 64] x 100
Subtract the new number by the original number
449 - 64 = 385
385 ÷ 64 = 6.015625
6.015625 x 100 = 601.56%