403.13% is the change from 64 to 322
Calculation steps:
[( 322 - 64 ) ÷ 64] x 100 = 403.13%
Formula
Percentage change = [(322 - 64) / 64] x 100
Subtract the new number by the original number
322 - 64 = 258
258 ÷ 64 = 4.03125
4.03125 x 100 = 403.13%
Example