145.7% is the change from 256 to 629
Calculation steps:
[( 629 - 256 ) ÷ 256] x 100 = 145.7%
Formula
Percentage change = [(629 - 256) / 256] x 100
Subtract the new number by the original number
629 - 256 = 373
373 ÷ 256 = 1.45703125
1.45703125 x 100 = 145.7%