354.69% is the change from 64 to 291
Calculation steps:
[( 291 - 64 ) ÷ 64] x 100 = 354.69%
Formula
Percentage change = [(291 - 64) / 64] x 100
Subtract the new number by the original number
291 - 64 = 227
227 ÷ 64 = 3.546875
3.546875 x 100 = 354.69%