169.92% is the change from 256 to 691
Calculation steps:
[( 691 - 256 ) ÷ 256] x 100 = 169.92%
Formula
Percentage change = [(691 - 256) / 256] x 100
Subtract the new number by the original number
691 - 256 = 435
435 ÷ 256 = 1.69921875
1.69921875 x 100 = 169.92%