646.88% is the change from 64 to 478
Calculation steps:
[( 478 - 64 ) ÷ 64] x 100 = 646.88%
Formula
Percentage change = [(478 - 64) / 64] x 100
Subtract the new number by the original number
478 - 64 = 414
414 ÷ 64 = 6.46875
6.46875 x 100 = 646.88%
Example