668.75% is the change from 64 to 492
Calculation steps:
[( 492 - 64 ) ÷ 64] x 100 = 668.75%
Formula
Percentage change = [(492 - 64) / 64] x 100
Subtract the new number by the original number
492 - 64 = 428
428 ÷ 64 = 6.6875
6.6875 x 100 = 668.75%
Example