137.11% is the change from 256 to 607
Calculation steps:
[( 607 - 256 ) ÷ 256] x 100 = 137.11%
Formula
Percentage change = [(607 - 256) / 256] x 100
Subtract the new number by the original number
607 - 256 = 351
351 ÷ 256 = 1.37109375
1.37109375 x 100 = 137.11%