385.94% is the change from 64 to 311
Calculation steps:
[( 311 - 64 ) ÷ 64] x 100 = 385.94%
Formula
Percentage change = [(311 - 64) / 64] x 100
Subtract the new number by the original number
311 - 64 = 247
247 ÷ 64 = 3.859375
3.859375 x 100 = 385.94%