518.75% is the change from 64 to 396
Calculation steps:
[( 396 - 64 ) ÷ 64] x 100 = 518.75%
Formula
Percentage change = [(396 - 64) / 64] x 100
Subtract the new number by the original number
396 - 64 = 332
332 ÷ 64 = 5.1875
5.1875 x 100 = 518.75%
Example