121.48% is the change from 256 to 567
Calculation steps:
[( 567 - 256 ) ÷ 256] x 100 = 121.48%
Formula
Percentage change = [(567 - 256) / 256] x 100
Subtract the new number by the original number
567 - 256 = 311
311 ÷ 256 = 1.21484375
1.21484375 x 100 = 121.48%