145.31% is the change from 256 to 628
Calculation steps:
[( 628 - 256 ) ÷ 256] x 100 = 145.31%
Formula
Percentage change = [(628 - 256) / 256] x 100
Subtract the new number by the original number
628 - 256 = 372
372 ÷ 256 = 1.453125
1.453125 x 100 = 145.31%