148.44% is the change from 256 to 636
Calculation steps:
[( 636 - 256 ) ÷ 256] x 100 = 148.44%
Formula
Percentage change = [(636 - 256) / 256] x 100
Subtract the new number by the original number
636 - 256 = 380
380 ÷ 256 = 1.484375
1.484375 x 100 = 148.44%