318.75% is the change from 64 to 268
Calculation steps:
[( 268 - 64 ) ÷ 64] x 100 = 318.75%
Formula
Percentage change = [(268 - 64) / 64] x 100
Subtract the new number by the original number
268 - 64 = 204
204 ÷ 64 = 3.1875
3.1875 x 100 = 318.75%
Example