293.75% is the change from 64 to 252
Calculation steps:
[( 252 - 64 ) ÷ 64] x 100 = 293.75%
Formula
Percentage change = [(252 - 64) / 64] x 100
Subtract the new number by the original number
252 - 64 = 188
188 ÷ 64 = 2.9375
2.9375 x 100 = 293.75%
Example