22.49% is the change from 209 to 256
Calculation steps:
[( 256 - 209 ) ÷ 209] x 100 = 22.49%
Formula
Percentage change = [(256 - 209) / 209] x 100
Subtract the new number by the original number
256 - 209 = 47
47 ÷ 209 = 0.22488038277511962
0.22488038277511962 x 100 = 22.49%