445.31% is the change from 64 to 349
Calculation steps:
[( 349 - 64 ) ÷ 64] x 100 = 445.31%
Formula
Percentage change = [(349 - 64) / 64] x 100
Subtract the new number by the original number
349 - 64 = 285
285 ÷ 64 = 4.453125
4.453125 x 100 = 445.31%